| Name | Hiroaki |
| Surname | Koshino |
| Nickname | |
| Birthday | |
| Height | 174 cm |
| Weight | 62 kg |
| Eye Colour | |
| Hair Colour | Black |
| Residence | Kanagawa, Japan |
| Junior High | |
| High School | Ryonan High |
| Year | Sophomore (2) |
| Jersey No | 2 |
| Position | Small Forward |
| Shoe Brand | |
| Hobbies | |
| Dream | |
| Quote | |
| Additional Info | Has a very strong attitude and is unwilling to be defeated, which puts him in the front line of the Ryonan team. Does not tolerate Sakuragi's 'nonsense' attitude. |