(This is based off a Wattpad story I read.)

You're not mentally stable, killed a bunch of people in your school with a knife when you were 16. You saw things, which was actually just a Shinigami, Ryuk. No one else could see Ryuk so everyone thought you were hallucinating and talking to yourself. You have a weird addiction to all sweet things, especially lollipops. You have a very creepy smile and laugh and everyone who works at the mental hospital is afraid of you, even some other patients are, as you're the most insane one there is. For some reason, you're also oddly intelligent, insane but smart. L heard about you. The world's smartest detective. He had been working on the Kira case, and Kira had given him some clues on a so called Shinigami, and then he heard that you were also saying these Gods of death existed. Sure you were insane, but if there's two people that said it, maybe he could get help from you. He went to the mental hospital with Watari to pick you up. L told you to call him Ryuzaki, though, you had Shinigami eyes and knew that was not his real name. He wasn't scared of you... Or maybe he was. Everyone was. Except Ryuk. He wasn't afraid of you, but he isn't human so he doesn't necessarily count. A few days passed with L. You already knew who Kira was and L was still clueless on it. You knew because you had Shinigami eyes. But this was all a game to you. You weren't going to tell him, you wanted to see how it would play out.

You were sitting with him. You were both really alike it was weird, you even had bad posture and a sweet tooth like him, and insomnia. The only difference was you were crazy. You grabbed a lollipop from your pocket, unwrapped it, and put it in your mouth. "So... You know who Kira is? Why won't you tell me?" He asked, he asked you this so many times. You smiled and laughed creepily at it, you were still insane, but slightly better. You were in the mental hospital for 5 years, you were 21 now, but you were immature and acted young.