Hiroki Sakurai

桜井 弘樹

Age: 15 Koizora's main male lead. A delinquent who attends Mika's school and becomes her boyfriend. [Spoiler] After going out for over a year, Hiroki breaks up with Mika. [/Spoiler] [Spoiler] Hiroki found out he had cancer during high school whilst he was dating Mika, which is the reason why he broke up with her. He was later hospitilized. [/Spoiler] [Spoiler] Hiroki passed away at age 20 due to cancer, over a year after he reconciled with Mika. [/Spoiler]