After the concert, Light says that he liked what Misa said in the beginning, but Sayu didn't like it. ... After Misa is taken into confinement and gives up her Death Note, Rem goes to Light, and Light talks her into sacrificing herself to kill L.

Did Light's girlfriend kill herself?

Misa continues her work as an actress while her activities are secretly supervised by police officers. ... Although she fails to kill Ryuzaki (whose name was written on a Death Note prior similar to L), she commits suicide by writing her own name, scribbled "Misa Amane dies in Light Yagami's hands".

What happens to Light's mom and sister?

Similar to the drama, Light's mother passed away before the events of the film. She was killed when Antony Skomal hit her with his car. In an act of revenge, Light kills Skomal, making him Light's second Death Note victim.