Diary

When Itou Ayako moves to a new town with her family due to her father's job, she stumbles upon a pretty girl being bullied on her very first day. After chasing off the bullies, the two quickly become friends, and Ayako vows to be 'her' knight. It's only later that Ayako discovers 'she' is actually a 'he'. That's her first meeting with Hanashima Rei, a boy so beautiful he makes everyone turn their heads. But what Ayako doesn't realize is that Rei is 99% mentally unstable. Her choices will determine just how extreme his methods become in keeping his 'knight' by his side.