Death note

"Light thinks he's put an end to his troubles with the FBI--by using the Death Note to kill off the FBI agents working the case in Japan! But one of the agents has a fiancée who used to work in the Bureau, and now she's uncovered information that could lead to Light's capture. To make matters worse, L has emerged from the shadows to work directly with the task force headed by Light's father. With people pursuing him from every direction, will Light...

L asks Light, though he is still under suspicion, to join the taskforce and help locate the second Kira. Light agrees so he can access the taskforce resources, but when he finally meets the new Kira, she's not at all what he expects.

L recuits Misa to infiltrate Kira and feed them information to bring them into the open.