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Under the light above the shadow

Summary:

An au where oda died when dazai was 14 due to his fight with Mimic, they are all less than 3 years from the original (but dazai is somehow 14 because I can:') )
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Dazai osamu decided to fulfil oda's wish by entering a high school of heros.
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Would he be able to do it? or his dark past would follow him wherever he goes?
Let's find out
(i know a cheesy introduction :') )
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Also it is a au where - of course - mha exist in Japan and there is slightly small difference between ability and quirk we will state these fact in this story.

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First fanfiction

Notes:

(See the end of the work for notes.)

Chapter Text

one of the five executives, intelligence member and a low ranking member of the port mafia were sitting in lupin par, The three of them converse like old friends.

One of them was holding a strange shaped bag - it looks like a camera bag - and protecting it from what looked to be the youngest.
" come on ango just a little test it won't distroy it" the brunet said playfully.

" I know dazai, but you won't stop on one pic..." he was interrupted when the boy snatch the bag from his hand.
The sheer of dazai's voice stopped him from snatching it back, or we could say it was useless to even try.

"do you even know how to use it dazai?" the 19 year old male talked with a sigh in his voice.
" of course I do....hey odasaku say cheese" he turned to his other friend happily and not even a second later a click was heard then a blurred photo of the called odasaku appear from the camera.
" see you are moving too much the photo turned out to be blurred"
" okay then.... You take it" dazai gave the now confused ango the camera.
"take what exactly?"
"a picture of us of course!"
Ango was holding the camera looking at both dazai and oda with weird expression on his face - someway sad-
It wasn't too long after he sat up the camera and returned to his friends to be with them in the photo fram.
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"why did you want the picture dazai? Is there something wrong?"
The red headed man asked curiously
Dazai looked at him with unreadable smile that made oda certain that he is fine but didn't answer the first question.
"well...it will be a great memory to be known that we were hanging out like this in this par once "

dazai said this as a hope for the future tone and not the opposite way to reassure his friends, but deep down in his mind. He knows that something will change everything up.

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He was right
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With mimic actively around an executive meeting was held by mori to discuss the situation.
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Dazai was walking to the meeting room when suddenly he heard a very familiar voice.
"it's been a while boy... How life is treating you?"
A beautiful woman with traditional Japanese clothes were walking alone far behind him
When dazai turned around to see koyou, he noticed something strange.

"oh.. Ane-san... Nothing much.
It is strange to see you without that dog around"

"oh.. You mean chuuya? Yeah he was sent by mori in a mission.... He is getting busier and busier now" Kouyou said with a smile on her face

" strange" dazai whispered out loud. His face turned to be a bit darker

"what strange about it dazai-kun?" another very familiar voice was heard, this time from both Kouyou and dazai.

"good after noon mori-dono" Kouyou welcomed her boss in her usual polite way which getting a nod as a response from mori.
"then shall we start the meeting the other two executives won't be arranging this meeting due to some missions".
When he ended his statement, he entered the meeting room leading the two to follow.
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A man's voice was heard talking from the othe end of the phone "you must stay low with your moves ango... I know your mission is dangerous, but you are the best person for this"

" I know that sir, but I think the demon prodigy and the boss have cought some wind of what is happening" ango said with a calm voice
"If you think that then we don't have a choice" and then continued " you must retreat and we will find another spy to do the job. You are a valuable individual to be aimlessly sacrificed.... Here is the plane"
While ango was listening to the plane, he
Was having this uneasy feeling in his guts.... He thought that somehow dazai knew of what will happen..... He have known all along so why now?.... Was he covering him somehow?no that's impossible .... The second thought made made him stop thinking....'was he in denial?!..... Was he in denial that I would betray our friendship?'
The phone call ended with a satisfied government member and a uncomfortable one.
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" so how is your friend dazai-kun?" mori asked sarcastically with his annoying smail
"they are fine thank you for your concern, mori-san." dazai replied with the same natural face
Kouyou was nowhere to be seen that means that the meeting was over and it is just a discussion between the boss and his prodigy
" I think one of them is Sakaguchi Ango am I right? You always attract the interesting people around you dazai-kun" mori said it with the familiar sickly smile
"what do you mean mori-san? What will bringing ango in the conversation benefit you?" dazai answered ignorantly like it is nothing special
" well... I am alittle disappointed. I thought you knew all along, but it looks like little osamu had become a little naive "mori said with darker tone in his voice. He continued" it's a shame really ". With this dazai's thought snapped and his face went panicked for a second it was really a second but it was enough for mori to enjoy the conversation
" what do you mean by that mori-san" dazai asked, but it wasn't really a question because he know exactly what did his boss meant by that.
There was no answers because there is not a question to begin with.
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The next time dazai saw ango he was very angry in othe way he was pissed 'how dare he betray the mafia!'.....
'how dare he stap odasaku in the back!!'......
'how dare he....... how could he betray his "friends".'
He knew anything he loves won't stay still in his hands..... He knew, but still chose to get his non existent heart to be crushed..... How cruel of him really.
Dazai doesn't remember what hateful word he said to ango or what honst bullshit he was saying, but he knws that evry thing what he said is true.
He is starting to regret being friends with them.... If he stays, they all will disappear one day...... But his selfish act got his other and only friend killed.
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"why did you send him off?!" dazai shouted at mori
" oh dazai.... What do you mean send him off?" mori asked innocently but every creature knows better.
" cut the crape mori"with a voice more serious than ever" first you provoked him by killing the kids and now what? Sending him to a suicide mission?! "
" I do what is the best of the port mafia dazai-kun.... You of all people should know that"mori said without a bit of hesitation.
" I know that everything you do has a meaning behind it" ..... 'An alternate motive for your sick desire' he thought ......" but I think we will disagree on this one action of yours " dazai turned around wanting to leave the hell out of here, but wasn't surprised with two gaurd aiming at him to shoot.
"where are you going dazai-kun... I don't think there's any poin of leaving" mori said with it like an order.
" you are not going to shoot me mori-san.... At least I know that" he continued walking towards the door.
"you know you will regret this later dazai-kun" he said it, but was unsure of what will happen next.

Chapter 2: Lost

Summary:

Dazai meeting ango again
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There is anger management issue in this chapter... And dislocated finger
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Sorry for the mistakes

Notes:

(See the end of the chapter for notes.)

Chapter Text

The port mafia headquarter was a mess, there is a lot of movement it almost looks like a whole building was panicking.
There was a reason for that.... A boy with an obsession and anger issue was out of control
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akutagawa ryunosuke a boy who is on his second year as a mafioso is making a fuss over his monitor's disappearance. Don't get him wrong... It wasn't the first time he had disappeared for more than a week, but the rumours around made him furious and out of control
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" me being absent for a whole week and this happened?!" a loud voice speaked in more shocked tone than anger
"who would have guessed, after mimic attack many things have changed" Kouyou talked in a calm way
" but seriously, that dazai!!... That fucking mackerel?!" chuuya said in disbelief "I would have laughed it off if I didn't see it myself".
"now now chuuya-kun, dazai's actions did really surprised me and did a number on the port mafia, but that doesn't mean his absence will do any difference" mori continued " we lost traces of him that's for sure, but he won't be hidden forever"
"mori-dono if anytime time you changed your mind by letting him free for the moment I will gladly take action by tracking him down " Kouyou said darkly. she thought dazai understand that 'if a flower grew up in the dark side it will easily be burning in the light' but he still did it... 'how foolish' she thought again.
"don't worry Kouyou-kun, he already know that he belongs by my side, but it is just some of confusion" mori said confidently. However, he knows dazai osamu is unpredictable boy.
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Chuuya watched the executive and his boss discuss about the fate of dazai.... Chuuya was most of the time strangely quite... Why? Because he is deep down didn't believe it... He hated dazai or that what he thought.... He deeply found some comfort by his company.. Not really... But he felt somehow betrayed....
He brushed the thought off and excused himself to leave.
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A lonely boy was walking in the middle of the night he didn't know where he was or what he is supposed to do now.
He was in this state in almost a week ..... 'how Pathetic' he thought to himself... The bandaged boy has a visible signs of exhaustion... When was the last time he slept? He didn't know.
A small cry of a cat was heard from the darkness of an alley he just passed by.
' that familiar sound' he stopped his track to find a very familiar calico cat sitting in front of him.
" sensei?" dazai questioned... Why is sensei here was he following him all along? The cat the turned around and gave him a sign to follow him.
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If it was daylight people would question the scene in front of them, a cat guide a little boy by grabbing his lose bandage from the boy's hand, but it was in the middle of a dead silent night.
Dazai followed the cat who called it sensei in a silent motion. the cat entered a complex apartment, it took about 3 floors for the cat to stop on a certain door. Noticing the trail of bandages is longer than before leading to an unconscious boy with heavy breathing the cat started to meowing loudly crying for the owner of the apartment to open the door.
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I woke up to sound of scratching and meowing at my door.... What a strange thing considering the place I live in.
I opened the door to surprisingly face the familiar calico cat that where always in his past friends hangout place ' I think dazai called him sensei for some strange reason'
The cat was holding something white in his mouth ' is that bandage? ' ango thought
" you are a very strange cat" he leaned down to reach the cat " what are the bandage for? ...." ango stoped speaking when he saw a long trail of bandage behind the cat. Sensei meowed for the man to follow then walked away along the trail of bandage
Not too long behind it ango followed cautiously, just when he turned around the corner he saw a very familiar figure laying unconscious at the end of the stairs.
"dazai?!!" he rushed to the boy to check his state. Such an unexpected to end the day
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Dazai opened his eyes to an unfamiliar ceiling and a comfortable bed. he can only recall seeing sensei and for a strange reason feeling safe and at ease all of the sudden.... He can't remember a thing after entering the building.

His attention snapped at the strange/familiar presence next to him... His old friend ango was sleeping on a chair next to the bed he was now laying on.

He clenched at the bed sheet with rage... His eyes like a black hole ready to swallow everything around him...

Ango was sleeping...and dazai now was hugging himself with his knees up to his chest...his head was a mess.... A storm of conflicts thoughts.
But he knows one thing to do for sure.... He must fulfil odasaku's wish.... His rage against ango must wait for the time being.
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Ango woke up with a pain in his neck he knew that he should sleep on the couch but his worry some got the best of him.... Opening his eyes expecting to see dazai still sleeping. However, he wasn't even there... He was about to panic, but a sound from the living room stopped him to do so.
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Leaving the bed room ango saw dazai relaxing with the same cat from yesterday next to him... When dazai opened his eyes to look at ango - knowing that ango was watching him- there was a moment of silence.... Just the two of them staring at each other.... Until the uncomfortable silence broke with dazai "happily" speaking
"where is my manners! ... Thank you for rescuing me SIR!... I really hope I wasn't difficult to deal with"
Ango knew that dazai don't want to treat him as his friend anymore...the painfull expression as if he got shot in the guts screamed in his face....

" dazai I..." ango said,but stopped when he saw the terrifying expression dazai made.... His eyes... Both of his eyes where staring at him now... Waiting for the older to go along with the stranger act for now.... But ango refused to act as stranger to each other.
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A sigh was heard from the younger as if he didn't want to argue with the topic any longer....
" long time no see ango huh.... I wasn't expecting to meet you so soon, but I guess sensei has a different opinion on this"

" I was surprised too. This cat was insisting to follow him... And I am glad that I did" ango said formally

"yeah... I would be very happy if the mafia is still after me now.... That will cause to you a headache and it would be amusing to see" dazai said with a happy cold tone in the end. That made ango surprised for a second which led him to ask

"don't tell me you left the port mafia dazai!" ango asked
"of course I did... Who would stay anyway... But really I am surprised you didn't know until now... What did I expect from the government...they don't tell anything to their spys" dazai said aimlessly playing with his rest bandages.

"what happened to oda dazai?...you won't leave him there" ango asked confused of what's going on.. It is imposble for dazai to leave oda... He didn't know since when they both met, but he is certain they knew each other longer than him.

"why do you care... For what I know you poisoned him last time he rescued you" dazai said coldly... How could you ask about him like nothing happened.
"DAZAI!" Ango screamed closing his eyes and at the same time he heard a cracking bone sound! Snapping his eyes open to see dazai's pinkie finger is in the wrong direction.
" you wanted to know what happened to odasaku huh.... He is dead" dazai wasn't looking anywhere except his broken pinkie... " after you betrayed the mafia, someone gave mimic information about odasaku's children. Mori-san had a hand in this. He wanted odasaku gone for good".
No one spoke for a while... Ango didn't apologise because it will add more oil at the already burning fire. He left the room to bring the first aid kit to treat dazai's broken finger.... He didn't believe it.. He knows dazai won't lie on something like this... Oda was an important person for dazai.... For.. Both of them.
He breathed before entering the room again facing an expressionless person like his soul left him long time ago.
When ango tried to approach him, dazai flinched and brought his attention to ango
"what are you doing?" dazai asked cautiously

"treating your broken finger...because I know if you didn't break it my nick would be"
Ango said sarcastically and dazai didn't say anything as if ango just stated a fact.
The finger was dislocated, but when he tried to treat it dazai immediately forced his finger back to its place with fast movement which made the older complain about how he shouldn't have done that due to the probability of damaging the joint and the surrounding muscles. Forgetting the fact they were past mafia members.

Notes:

I have exams this week so the next chapter may take a longer than a week but not longer than two

Chapter 4: The demon wants to repent

Summary:

Sorry for taking so long....
But i am in the middle of summer study 😭
And it is exhausting
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May be i will make it a monthly update..... Or whatever my motivation will do to help

Chapter Text

The apartment was silent most of the time when ango was out, but the silence in dazai's prospective isn't that bad. He is used to be alone in a isolated places except this place wasn't.
When ango & dazai's voices became loud enough to alert their neighbors to actually interrupted their "conversation" - as if it wasn't one sided - they made a agreements.
"We don't want unwanted attention from my neighbor, they all know that I live alone. Some of them are my colleagues so if they hear us argue every day that will cause suspicion" ango said continuing "I will work on a reason for Your presence in my house... The best justification will have to be that we are somehow related"
" That's reasonable.... But don't think me agreeing with you means that i forgave you... I am just building a way to escape mori's clutchs when he decided to chase after me" dazai interrupt ango by his usual cold voice
" I know what I did is unforgivable but that was my job... I didn't expect the outcome to.... Turn this way..."he said the last words with bitterness in his tongue.
There was moment of silence until ango broke it again.
" dazai "
" hm? "dazai answered his calling playing with his wrist bandages.
" why did you decide to leave the port mafia?..... I don't dare to say that I know what you would do.... But that's not a move you would do without a motive "

Dazai sighed to actually answer his question "odasaku told me to"

With this answers ango's eyes were wide open..... And closed it to calm down right away
"what did he tell you exactly? " ango asked like it was normal conversation but he knows he is now touching a deep wound to both of them
Dazai was silent for a moment then he sighs
" he told me...... He told me to grow to be on the side of good."
"huh?"
" odasaku told me to be a good person, ango".... "it's funny isn't it?... I was always been called name like demon... Monster.... And even a doll for blindly achieve anything for the mafia's sake.... For mori's too" he said the last statement as calmly as possible but faild to hide the confusion from his voice.

" I always thought that oda san was seeing you as a broken child, I don't know when and how you two met but I am certain that even with your differences.... He always saw a friend on you...." ango paused for a moment "what will you do dazai?"

The atmosphere in the room was heavy to continue the conversation... Ango's word about oda made dazai freeze in his place with blank eyes..... The cat moved and graped dazai's now loosen bandages... That made dazai walk with it almost fell to the floor... But he cought himself... He is now walking to a picture frame on the wall......
It didn't take him second and he fell to his knees now sitting on the floor... It was their picture.... The picture that was took before the tragedy.... They all got copy of it but he left his in what's called his "home".....
"dazai.... I know I can't imagine what you're feeling now.... But I know it was hard for you..."
"I will do it"
"huh?"
"I never had a purpose in life so i was aimlessly wandering and completing orders for the mafia..... If my friend last wish was this.... I will try to be a good person... At least this is what odasaku want me to do"
Dazai said it
Ango's mind was now strangely calm he felt like someone was comforting him from behind
Dazai finally is walking to the right path 'oda would be really proud of him'
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An exploding noise made chuuya woke up from his peaceful sleep
"what the hell is going on?!"
Chuuya immediately got his head out of his apartment window to discover the fact that his car is burning
"my car!!!"
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"is what you did necessary, dazai?"
"of course it is... Then how am i supposed to get red of that ugly jacket?" dazai answered ango with enthusiastic voice but a ' saying good bye to the slug' left unspoken.
Ango left a sigh out, he really was sighing alot lately that what did he think is the least that will happen when he decided to help to achieve oda's last wish,
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The next hours was discussing about what would they do next
"I certainly know that my face is not known to the public but does the under ground government knows? That will remain mystery unless you tell me"
"I am nothing but spy for them..... But i am sure after successfully giving them valuable information they would promote me to higher level"
Dazai stared at Ango with 'if you were just a spy they won't have rescued you' face.... But decided to keep the thought to himself.....'as long as his actions brings benefits our relationship would last'

With a fake smile dazai congrats ango
" that amazing ango.... Who knows maybe you will work under the Ministry of Home Affairs on day" sarcastically

Notes:

The next chapter will be out next week
Thank you for reading
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