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.

When high school student Light Yagami finds the Death Note, a notebook dropped by a Shinigami death god, he discovers that any person whose name is written in it dies, so Light decides to use the notebook to rid the world of evil.

With Near openly suspecting the new L of being Kira and sowing doubt in the hearts of the task force members, Light is once again forced to pass the Death Note on to another to take the heat off himself. But this time, Kira chooses a disciple from among his true believers. With no way to contact his successor directly, Light must rely on his faithful follower's adherence to Kira's goals. Will this newest goal bring Light's ideal world closer to reality?...