|Height||170 cm (5'7")|
|• Professional Status•|
|Relative(s)||Isehara Sora (younger sister)|
|Japanese Voice||Yamashita Seiichirou|
|English Voice||Anthony Bowling|
Gaku has short black hair and eyes. He wears the standard Kitakomachi uniform and club uniform.
Gaku is generally quiet, almost always not answering when spoken to unless said person happens to be his sister Sora, who he always replies to.
Not much is known about Gaku's playing style but he was strong enough to reach the semi finals in the Inter High preliminaries.