Welcome to the Asylum!

Summary: Sawada Tsunayoshi is a young man in his prime sixteen. He was taken to the mental asylum for one reason: He heard voices. Voices that told him to kill, rip, and… please him? –AU-

"Mom, I'm not crazy," Tsuna said for the hundredth time that day as he was put on a straitjacket. His mother was looking at him with sad eyes as she cried to her handkerchief. It was her and Iemitsu's decision that they should send off their son to the Vongola Asylum. A famous asylum that guaranteed the inmates' safety, and their medical-mental health.

They were worried for so long. Their son was a particularly normal teenager until he started to scream in the middle of the night, banging his head to the wall as he muttered 'stop' to himself. These few months have been extreme though. He clawed his hands, making it bleed nonstop as he whimpered and cried, asking something to stop.

Their once cheerful, cute, and awkward son changed into a silent teenager. There were times they found Tsuna sitting on the terrace, laughing, or even conversing with himself. But, his night attacks had been too much.

"I love you, Tsu-kun," His mother waved as the ambulance drove away.

"Would you look at that, Tsuna? You're alone now. For the first time ever, no one is here for you." The calm, cool, and collected voice said as Tsuna woke up in a white room with nothing besides himself. The brunet shivered as he realized what that voice had said. He's alone. Nobody is there for him. Alone.

"HIIIIIIIIIIIIIIIE!" The brunet stood up with a jolt as he tried to free his hands from the straitjacket and get the fuck out from here. Being alone in his room with this voice coming at him was bad enough. And then his parents put him in an asylum?

Damn, they're making it worse.

"Let me out! I'm not crazy! I'm not crazy!" Tsuna said as he banged his head to the door. "You know what to do, Tsuna. And I can do it for you." The voice said, almost purring. It felt so realistic that Tsuna had to bang his head harder to the door. "Please, please, please…" The straitjacket was being a fucking disturbance to his usual activities. Normally, when Tsuna was having one of these strange auditory torments, he'll claw his own hands to make the other shut up and writhe in pain with him. And not telling him to do strange things like it's doing now.

"Rip everything. Yes. Kill everyone. Only then, your, our bloodlust will calm down." Tsuna swore he could feel someone hugging him from behind. He turned his head to see who it was, but found no one. "Surprised to see me, partner?" Tsuna's eyes tripled in size, and also in fear. Something… someone was there, smirking like no tomorrow. But, this someone actually looked like him.

Pair of breathtaking orange eyes stared to his own chocolate ones, bearing a huge, maddened grin on his face. His eyes were not Tsuna's, but it entirely belonged to some other new being who wished to kill everything.

He once lost himself to that orange-eyed being when his young five years old cousin, Lambo, visited from Italy. He was being so annoying that for the first time in his life, he lost it. It was his mother's voice who woke him up from his daydreaming. He found himself with a knife bloodied with his cousin's blood. Lambo was bleeding, and Tsuna didn't remember ever slitting the boy's throat. He was saved though, fortunately.

"Hi, partner." His other self greeted as Tsuna looked at him with fear.

Asylum with his… other self would be so… restless.

Reborn was the doctor-in-charge for the Asylum. Well, working on mental asylum could be fun, or just plain weird. Many of his inmates refused to go out from their room. Some enjoyed sitting on their room all day, speaking with themselves with blank eyes. Others just… threw tantrums whenever they wished to.

That's why tranquilizer became his new best friend.

He walked around with his tranquilizer on his black suit's pocket. He was making his rounds like usual today. But, a new inmate just threw a tantrum inside a room he'd never been inside before. This corridor was created for inmates who possessed dangerous mental problems, no? Reborn walked to the unusually noisy room and took a peek of what's inside.

"N-no… Don't! Stay… away…" The inmate panted slightly as he ran around in his room. The inmate was cute. But, why is he in the 'dangerous' corridor? Reborn narrowed his eyes as the inmate perked his interest. Nothing can perk him like this before. The cute brunet managed to trip himself to the ground. He thrashed around on the floor, like he's trying to push something on top of him.

"I-I can't breathe!" He shouted to the empty room.

But, as Reborn saw it, to the cute inmate, that room wasn't empty. "STOP IT! DON'T! A-ah…" The inmate moaned as something did something to him. His hands were strangely pinned to the floor, but his feet kept on thrashing. "U-uuuuuumph!" He said with muffled voice.

The brunet gasped for air as he tried to fight the invisible force. He moved back using his feet without standing. He gulped as his back was against the wall. "N-no… d-don't…" The brunet closed his eyes in fear. "Please?" He asked.

Then, Reborn saw something that was out of his assumption. Another brunet, although a little bit transparent, appeared out of nowhere. He smirked as he let his hands travel dangerously near the cuter brunet's crotch. He kissed the shivering brunet full on his lips.

The mysterious being seemed to notice about Reborn who was outside of that room. He looked over his shoulders, straight to Reborn's onyx eyes before returning his gaze to the boy in front of him.

"We should play again next time, Tsuna."

Tsuna shouted with everything he got, whimpering and begging his… partner to stop. He didn't like being kissed like that. He cannot breathe, and he hated that feeling. He thrashed around once more, trying to get free from his straitjacket and maybe kill himself. If he's going to be stuck here in this asylum with his other self doing dirty things to him, he's better off dead.

Tsuna sighed as the straitjacket stayed still where it belonged. He went quiet and tried to bite his tongue.

The brunet bit his tongue. It was painful, but he knew that it's not as painful as what his other self had done to his mental state.

Suddenly, the door opened and a doctor rushed to his place. "No! You can't kill yourself!" The doctor said desperately. Tsuna knew that, as the best mental asylum around, how can the Vongola branch let one of the inmates to commit suicide? The doctor was wearing an orange fedora with a chameleon sitting on top of it. Quite peculiar, but Tsuna couldn't care less that time. The weird doctor grabbed his cheeks and pushed it so he won't be able to bit his tongue.

"I'm sorry," The doctor injected something to his neck, and then it went dark.

Reborn laid the inmate on the floor and examined his face. He looked rather peaceful compared to a few minutes again. The boy's skin was pale as a sheet. He looked like he could die any moment. The onyx-eyed doctor examined the boy's name tag.

Sawada Tsunayoshi

16 years old

Presumable D.I.D

The Italian clicked his tongue. D.I.D? That's one of the most troublesome diseases ever! Reborn shook his head and went back to his normal expression. His phone vibrated on his pocket. He opened his phone and got a text message from his old colleague.

Reborn,

My son was admitted at the asylum you're in charge at.

Please treat him well.

Iemitsu.

"Talk about a great timing, that Iemitsu." Reborn whispered as to not wake the brunet. He turned to Iemitsu's son and eyed him from head to toe.

And seriously, he found Iemitsu's son to be cute. He has this pale skin that complimented his slightly-pink lips. Sleeping figure so peaceful that only a heartless demon would want to disturb him. Unruly, disheveled brown hair that managed to frame his oval face perfectly. Those eyelids that hid pair of Nana's beautiful brown-doe eyes. This child was simply sublime.

Reborn couldn't hold it in anymore. He smirked as he let his hands traveled. His left hand traced the brunet's straitjacket in a rather provocative manner. His right hand proceeded to touch the boy's cheek, but he was slapped by the brunet.

"Don't touch him so easily." A distorted, warped, calm, cool, and collected voice said to the doctor. Reborn moved back abruptly. His hands ready on his tranquilizer. The cooler copy of the brunet he'd seen smirked to him. "You are…?" He asked. "Tsuna's not here right now." Orange eyes looked to Reborn's own onyx-eyes mockingly. His lips curled to a sadistic smirk.

The brunet tried to stand up, but it seemed to the doctor's eyes, he was pulled down by something. He wasn't sure how to call the brunet in this state, so he just went ahead and called him Zero. Zero looked astounded for a brief second, but, he grinned almost immediately. "Are you telling me not to mess with him? Hmm, partner?" Zero's hands moved under his straitjacket. After a futile attempt of trying to release himself, he laughed out loud.

"Why would I listen to you, partner?" His layered voice made Reborn's hair stand on end. Aside from what he had described about the brunet's voice before, he can also sense overwhelming cruelty and pure intention of evil. Reborn instinctively stepped back. Orange eyes widened in surprise for a bit and then he gazed at Reborn with maddened orange eyes. He scoffed and grinned so wide.

"Kehehehe," He chuckled madly as he banged the back of his head to the white wall. "Consider yourself lucky, doc. Tsuna's so willing to protect you that he actually kissed me!" Zero grinned wide to Reborn's face. He still looked like he hasn't sleep for days with the way he widened his eyes. "Huh…?" He said dumbly. Zero fell to the floor, laughing hysterically. "You heard me? Tsuna kissed me!" He cackled.

Reborn gulped. Never once in his career as a mental asylum doctor he met a patient like this one. This was not your usual D.I.D case. This was scarier. More… unrealistically mental! Zero seemed so obsessed with Tsuna. Now he can understand what Tsuna had mean when he whimpered, getting pinned and everything. Does that mean that Tsuna himself had gone to the state that he's seeing illusions of his other self?

"Don't turn silent on me, partner." Zero purred to himself. "What's bugging you? Are you sleepy? No… you can't be…" He purred once more. After a few minutes of silence, the brunet sat up on the floor abruptly. He eyed the scientist with his usual, maddened, eyes. But this time, anger laced his sunset colored eyes as he gritted his teeth.

"You," He said with a low growl. "It was you…" Reborn stood still, regaining his composure. He's the doctor here, he needed to shape up. "Is there anything you need, Tsunayoshi?" He asked with professional tone. "Leave! You're the reason why… Tsuna…" The brunet stopped abruptly. His entire body convulsed as he fell to the ground, shaking hard. "What just happened?" Reborn crouched to see what happened with his newest inmate, but, a pair of chocolate eyes looked at him pleadingly.

"Leave… Father's friend…" His real inmate pleaded "Y-your name… it's… Reborn…?" He asked to assure himself, Reborn nodded in awe, still comprehending what's going on. "Tsuna! Why, you…!" His right eye turned orange as Zero struggled to take control. His hands went up to Tsuna's neck and grabbed it, ripping the straitjacket in the process. "Ack! Run! Please! Don't return w-when he's in control!" His entire body was still shaking, but, he managed to look at Reborn's own eyes.

"HE'S GETTING TOO CLOSE! TOO CLOSE WITH YOU! I CAN SENSE IT! I CAN FEEL IT! YOU'RE GOING TO CONSIDER HIM SPECIAL!" Zero raged, his distorted and warped voice sounded crueler than ever. "LET ME AT HIM! LET ME TORTURE HIM LIKE HOW I TORTURED THAT ANNOYING BRAT YOU CALL YOUR COUSIN! NOBODY IS TO HAVE YOU, TSUNA, PARTNER! NOBODY BUT ME!" This time, orange eyes looked at him madly as Tsuna tried to choke himself instead of letting Zero rip Reborn's throat off.

"R-Reborn-san…" Tsuna said in the interval of his own short breathing. "Run!" He pleaded. With that, Reborn quickly ran to the door and locked his most dangerous inmate inside the white room. Reborn was a fearless man. But, seeing Iemitsu's son, someone who interested him greatly, struggled like that with another being who wanted to actually kill Reborn was enough to make the Italian felt fear.

Reborn slide down in front of Tsuna's room and pressed his ear to the door.

"Nobody, and I mean nobody, will have you, Tsuna. I can't let them get close to you, can I? Because you're mine. Has been, and will always be."

Well, how do you think? Think it deserves to be a multichaptered fic? This idea struck me as I was reading some Bleach fics. I always love crazy people in love XD

D.I.D is a multiple personality disorder. Can't resume it any better than that XD

Please review and tell me if this interest you good enough to see what happens next!

Your friendly fangirl,

~Chiri-tan