|Family|| Megumi Sakai (mother)
Hisashi Sakai (father)
Tomoki Sakai (brother)
|Live Action||Junya Ikeda|
Though 11 months younger than his brother, they are in the same year of middle school and they are mean to each other often.
He has black hair and dark blue eyes.
Miu Nomura - His crush, Now his girlfriend.
- Hiroya likes river fishing.