You were one of L's assistant, though you were also smart as him. Its been 10 months since the kira case still continues, L knew Light yagami was Kira from that start, however he had no proof to everyone..but you did believed him already

You just came back home after spying Kira with another task force member, but when you came back, it was only you alone. You reported what happened during the spy on Kira who managed to kill the task force member secretly. L sighed and stood up from his chair, you thought he was gonna scold you but he just pulled you into a hug, buying his face on the crook of your neck

"Its alright..more importantly is that you're safe."