Light joins L's investigation in order to find the second Kira before them. L makes Light write a message writing as if he were Kira so as the 2nd will respond. The 2nd Kira, a popular idol named Misa Amane, replies saying that she wants to meet Kira, giving instructions about the place where they can meet. Light and officer Touta Matsuda go to investigate such place, and Misa discovers Light is Kira as the exchanged Shinigami's eyes cannot see the lifespan from Death Notes' owners. Misa finds Light's house and visits him, confessing she is the 2nd Kira, and wants to aid him in his work. As Misa is in love with him, Light accepts her help but tells her to keep their relationship in secret. Some days later, Misa finds L and Light talking in the university, and sees L's real name. Before Light can ask Misa about L's name, Misa is arrested as she is suspected of being the 2nd Kira. Misa's Shinigami, Rem, makes Misa forfeit her ownership from the Death Note causing her to lose her memories concerning the Death Note. As Rem forces Light to save Misa, Light gives him his Death Note and requests L to be imprisoned saying that he is possibly under Kira's control.