Hikaru Kusakabe

Hikaru Kusakabe is one of the two central students in Doukyusei, a high school romance focused on his relationship with Rihito Sajou. A guitarist in a band, Hikaru begins tutoring Rihito for a school choir performance and gradually falls in love with him.

Hikaru Kusakabe's relationship with Rihito

Outgoing, direct, and emotionally expressive, Hikaru contrasts with Rihito's reserved and studious nature. His confidence sometimes gives way to jealousy and anxiety when their different plans for the future threaten to pull them apart.

Music, jealousy, and growing commitment

Music is central to Hikaru's identity and to the way he first connects with Rihito. Their relationship develops through honest conversations, misunderstandings, and decisions about education, distance, and a shared future.