Y/N, a young 3 year old was orphaned at age 1.  Her parents never loved her, but she found how to live on her own with living at the Wammy house.  Even though she wasn't good at math, or anything yet, a 15 year old named L had convinced the guy who ran the place to keep you.  Now L was not 15 any longer, for he was now a detective for mysterys.  Right now he was working on one that couldn't be solved....
The Kira case....

No one honestly could figure it out.
It was a mystery, a huge one.

"L I think you should take this case else where. We can't have a threat near the younger children here."

But a threat did Happen.
A fire...
Good thing you were saved, by your 'hero' as you call him, Mello. Mello watched over you when you were 1 and the others couldn't so you knew him very well..

"Now listen we are to take the kids to a headquarters...But.....Y/N is going with L."

"What?!! You can't send a three year old out on some murderous case!!! It's dangerous!!!" Matt, and Mello yelled out.

"I'm sorry, but it's best."

You arrived at L's hotel with him waiting for you. "Hey Y/N. Glad to see you here." L said, in his monotone like voice, but with a smile.

You nodded shyly. You hardly ever talked to L since he was busy with work.  He smiled and picked you up, taking you inside. "Well, Y/N are you hungry?"

You nodded a yes, you were very hungry actually, you haven't had food for 2 hours.

He smiled and fed you F/F
(Favorite food)

You happily ate and soon weren't hungry anymore. "Tank chu!" You said, in your toddler voice. L chuckled at your cuteness. "Your welcome."

This mystery didn't seem so bad.
But it was...
And it got worse....