Female university student Kanna Hijiriyama wanted to become an announcer. She gives up on her oral test to become an announcer and kills her father. The media searches for the motive of why Kanna killed her father. Yuki Makabe is a certified psychologist. She receives an offer to write a book about Kanna Hijiriyama. Yuki Makabe talks to Kanna Hijiriyama in prison and also to people that are familiar with her. While doing her research on Kanna Hijiriyama, Yuki Makabe notices that Kanna Hijiriyama is a lot like herself when she was younger. Yuki Makabe faces memories that were buried deep in her mind. ~~ Adapted from the novel "First Love" by Rio Shimamoto.