Yui Arai

Arai Yui is Keito's classmate from 6th class of grade school. She is a bossy person and never listens to other's opinion. [Spoiler] Her true name is Natsumi, the real Yui passed away due to sickness in 6th grade. Nami was bullied at school, she considered Keito the same as her, a person for whom luck has turned it's tail. But while Keito recovered and became famous actress again, nothing happened to Nami and that harboured hatred in her. [/Spoiler]