Chapter Text
Rin grumbled to himself, trudging through Gehenna clumsily, trying to keep sleep from overpowering him.
"Damn defiant demons," he muttered tiredly. "I can never catch a break."
Rin paused, yawning and rubbing his eyes. He stretched and continued on.
His eyes slipped shut for a few moments, but he opened them immediately afterward.
Those few moments were just enough.
Rin stumbled, tripping, and sent himself flying forward.
Unfortunately, defeating his father, Satan, and becoming King of Gehenna didn't make him less clumsy when he was tired.
Rin was awake in seconds, eyes wide in panic as he fell through a black hole.
A portal, it was. Gehenna existed in all dimensions and different portals led to different portions of Gehenna that lied in other universes.
Some portals led to other parts of Gehenna that lied in other worlds. Some led straight to the other worlds, landing demons in the other worlds on Assiah. Rin prayed he landed in the other portions of Gehenna.
Sadly, he had horrible luck. Maybe it was the curse of being Satan's son.
Rin blinked slowly, blurriness fading from his vision.
He stood up and dusted himself off, glancing at his surroundings.
He'd landed himself in Assiah. A different universe, though.
Rin's eyes caught the sign 'Amity Park' and cursed to himself.
He did not have time for things like this. Rin wondered if he could create a Gehenna Gate back, but abandoned the idea the moment it was created.
That would surely lead demons to the area. Rin couldn't feel any demonic presences in this world, leading him to believe that demons didn't come here often, if at all. Rin didn't want to be the cause of helping demons invade this world.
Bad luck seemed to trail him, for it was light out, not dark. It would be harder to hide now, if somebody hadn't seen him yet, at least.
Rin checked around, making sure nobody had seen him. Luckily, he was alone.
He looked down at his attire and grimaced. If someone saw his clothes, he was going to get some weird looks.
He wore a flaming, blue crown, along with a dark, navy cloak. He had a black, long-sleeved shirt with dark combat boots. Dark jeans with a chain hanging off one side hugged his legs. His sword was hanging off his shoulder in its sheath and red covering.
Rin scowled at how he was still in his demonic appearance, and scolded himself. What if someone had seen?
His ears were long, narrowed, and pointed. His teeth long, sharp, and prominent. Blue flaming horns adorned his head, and a blue flame flickered at the tip of his tail.
His nails were sharp, iris's jagged and sharp, as well. His pupils were a bright, slitted, blood red.
Rin's tail lashed back and forth behind him in annoyance.
During his battle with Satan, Rin had snapped his sword and took back his demon heart.
He'd always lost control before because he tried to reject them or control them. During Satan and his battle, Rin had accepted them instead.
When he rejected them, it meant Rin had feared the flames, allowing the flames to consume him. Doing this, his fear skyrocketed, not letting him be able to tell friend from foe, making him attack everything and everyone.
When he tried to control them, it was under the same circumstances. He tried to control them before accepting them. He had to accept them before he could control them.
Kurikara was mended afterward, and Rin was able to cover the sword in his flames, allowing the sword to be just as it had been before. It was now just a blue flaming, powered weapon. Rin was able to control his demon and human transitions by his own will now.
Unlike any other transformations, both his demon and human forms were his, meaning that even if he was tired or unconscious, whichever form he was in would stay intact unless he forced himself to switch.
Rin switched to his human appearance, flames and crown disappearing, ears shrinking, fangs shortening, and eyes going back to normal.
His iris's lost their jagged edge, as well as the pupils lost their blood red color.
His ears turned normal, but they were still pointed like an elf's.
His top and bottom canines weren't as long now, but they were still inhumanly sharp and pointed, but it could be easily passed off as a deformation, as well as his ears.
His tail was still visible, but the flames were gone, so he easily tucked it beneath his shirt and wrapped it securely around his waist.
His attire was still a problem, but not as big of one anymore since the crown was gone.
He took off the cloak, activating his flames to burn it. He would get a new one later.
Rin took Kurikara from its small, red bag and shoved the cloth into his pocket. He grimaced and pulled up his shirt, slowly pushing the sword into the seal that adorned his stomach. It was still a weird feeling.
Rin hummed and decided that his other clothes were suitable.
He glanced around and figured this part of the city was obviously very secluded, thankfully.
Rin walked about and found his way to the busy part of the city.
The first thing that caught his eye was the giant 'Fenton Works' sign on a UFO-type building. Below it was what Rin figured to be a house.
Before Rin could have anymore thoughts, screams were heard.
"Ghost!"
"Ghost?" Rin muttered, confused.
He looked up and followed the scream, only for his eyes to fall on a woman and a floating, green blob with red eyes.
"It's Invisobill!"
Rin raised an eyebrow, utterly amused by the idiotic name.
Rin saw the person dubbed 'Invisobill'.
It was another ghost, obviously. He looked very human, but he glowed and had toxic, glowing green eyes with snow white hair. He wore a black tunic, and white cargo pants with black stripes going down the sides. He wore black combat boots and white, fingerless gloves with a belt that had some kind of thermos attached to it. A white 'D' with a black 'P' hung on a small chain around his neck.
His demon hearing picked up on the ghost's mutterings. "It's Danny Phantom. Get it right. Gosh, that name is so ridiculous..."
Rin chuckled to himself, realizing quickly that Danny Phantom did not choose to be called Invisobill.
Phantom punched the green blob and sent it flying. It hit the street, and Phantom unhooked the thermos, opening it and pointed a beam of light towards the blob. It was sucked into the container, and Phantom flew off.
'So, this universe has ghosts? And it's own ghostly superhero?' Rin thought.
Rin frowned when he recognized the scents. The green blob gave off a rotting corpse scent, a dead scent. Phantom gave off the same, but only half. The other half of his scent was an alive smell, nature and life.
It was possible that the boy was only half ghost, but Rin didn't have any proof, so he was going to make no assumptions.
Rin wandered the streets, glancing at everything he could set his eyes on. Knowledge of this world and town could prove useful in the future.
Rin wasn't paying attention and slammed into a person.
Rin wobbled, but regained his bearings and caught the other person that was still falling towards the cement.
His hand clutched a petite, pale one. A girl, he realized.
Rin pulled her upright and blushed. "Sorry. I wasn't looking where I was going."
The girl laughed. "Me neither. We're both to blame, I guess."
She had short black hair, and a portion was pulled into a small ponytail at the back of her head near the top. She had violet eyes and a black crop top with a people circle in the center, a black skirt lined with green on her hips. She wore purple lipstick and black combat boots.
Before he could say anything, two boys came running up behind her. "Sam!" They both cried, "Don't go running ahead!"
One was cocoa skinned with a red beret placed atop his head. He had forest-green eyes and glasses, some type of tech in hand. He wore green cargo shorts and a yellow, long-sleeved shirt. His boots were brown.
The other boy smelled exactly like Phantom and looked exactly like him, only inverse. He had messy, raven black hair and bright, ice blue eyes. He wore a white tee with a red circle, normal jeans, and red and white sneakers.
This confirmed Rin's theory. This boy was definitely Phantom. He was definitely half ghost. Rin could hear the boy's slow, but existing heartbeat.
"Sorry," the girl apologized to her friends. "but you guys are slow."
"I'm tired for a reason," the boy, Danny, whined. "You know that."
"Okay," the girl rolled her eyes. She turned her attention back toward Rin, speaking, "Sorry, again. I'm Sam Manson."
"Rin Okumura," Rin replied, nodding his head.
"Who's this?" The brown-skinned boy asked.
"We bumped into each other." Rin blushed. "I wasn't paying attention."
Danny laughed. "Well, I'm Danny Fenton. Nice to meet you."
Rin grinned, much to the three friend's astonishment. Rin was sure he looked feral, smiling like that with his fangs. Danny Phantom? Danny Fenton? Rin supposed the only reason the kid could keep his secret was because nobody would ever expect someone to be half dead, half alive.
"I'm Tucker Foley. TF as in Too Fine to the ladies." Tucker grinned.
Sam rolled her eyes. "Shut it, Foley. Girls don't like you, and you know it."
Tucker pouted, but didn't object.
Danny chuckled. "You know it's true, man."
"Doesn't mean I have to like it," Tucker mumbled.
Rin found a nostalgic feeling from Tucker. He reminded Rin of Shima.
Rin suddenly remembered the 'Fenton Works' building he'd seen. "You live in that giant UFO? No offense."
"Yeah." Danny sighed. "My parents are ghost hunters."
'Oh!' Rin cringed. 'Tough luck, ghost boy.'
"Are you new? I've never seen you around school," Sam asked.
"Uh, yeah. I just moved here." Rin smiled awkwardly.
"Well, we'll be seeing you." Danny waved. "Bye!"
"Bye!" Rin copied, and the trio was off.
"I don't have time for school," Rin murmured, "So, I guess we won't be seeing each other again."