Alexander Gaku Aihara
- Nationality: JPN
- Birthday: 2000-1-5
- Biorhythm Today:
- Height: 6'3''/1.90m
- Weight: 176 lbs/80 kg
- Club: Saga Ballooners
- Shirt Number: 36
- Position: Point Guard
Line-up:
| Power Forward | |
| 23 | Yoeli Childs |
| 60 | Chase Fieler |
| 66 | Yusuke Nakanishi |
| Small Forward | |
| 14 | Kosuke Kanamaru |
| 21 | Toshiki Tomiyama |
| 34 | Ryota Inoue |
| Center | |
| 15 | Lamine Mbodj |
| 32 | Yuki Mitsuhara |
| 55 | Josh Harrellson |
| Shooting Guard | |
| 25 | Taiki Sumida |
| 30 | Yusuke Karino |
| Point Guard | |
| 2 | Reynaldo Garcia |
| 5 | Yasuhiro Yamashita |
| 20 | Atsuki Kishida |
| 36 | Alexander Gaku Aihara |
| Head coach | |
| Yuta Miyanaga | |