Death Note Episode 15: Wager

Light Yagami privately asks the shinigami Rem to kill L, and she agrees, but he instructs her to wait for his order, planning to give it the next day.

Light asks Misa Amane for her phone number but rejects her main phone due to police tracking risks; she gives him one of her three spare phones, and he insists only he will use it, likely tomorrow, before telling her to go home. Misa pushes for romance, so Light kisses her to make her leave happily in a trance-like state, surprising Ryuk.

Outside college, Light meets L, who reveals he has told Light's father, Soichiro Yagami, that if L dies in the next few days, Light should be arrested as Kira, since L believes the two Kiras have met. Misa suddenly appears, chats briefly with them to Light's frustration, then leaves; moments later, L informs Light that Misa has been arrested as the second Kira.

Misa, blindfolded and tied to a chair in custody, faces L instructing Watari to torture her for information, shocking the task force. Days later, Misa refuses to confess and talks to Rem about wanting L to kill her instead.

Misa attempts to bite her tongue and bleed out, but Watari gags her; her body goes slack as she sheds a tear, and Rem gently brushes her hair, which L notices.

Several hours later, Rem tells Light and Ryuk that she offered to break Misa out, but Misa refused verbally to avoid exposing Light; overwhelmed by suffering, Misa forfeited ownership of her Death Note, erasing her memories of it. Rem warns Light that if he does not save Misa, she will kill him. Light reflects internally on his carelessness with evidence and vows the real battle with L is just beginning.