Kaga is firmly a man of character. He can be frightening at the first sight and everybody seems to fear him. He is hot temper and when we see him for the first time he torn Tsutsui's book.

He has a rebel style, scruffy, liking Kimono and shirt wide open.

He walk-around with a scooter, smokes hiding and vanishes of the supervisor. He seems to do all for being a bad boy and he is awesome and respected by the others.

He's imposing nearly manipulative, he threat peoples. Very proud, sometimes uppity he has often The class. But he never boasts of things that he can't do.

In spite of that, he seems to have a sort of intimacy with Tsutsui, a shy, gentle and serious student. Even if they seem to be absolutely opposed by theirs characters, they seems to know one another and the discreet Tsutsui took the liberties to sermonise Kaga about his attitude.

When he was a child, Kaga was dreaming on play shogi but his father wanted absolutely makes him a go champion's. And the young Kaga was on the go lessons where Akira Toya was, and his father put them in competition. One day, his father gives him an ultimatum. He will back home only if he wins against Akira.

The young Akira let him win, showing that lose against him doesn't mean anything, that Kaga was not a rival for him. From this moment Tetsuo detested Akira Toya.

Kaga's father understood that his soon will never win against Akira and he loses his interest for him. So Kaga could devote to his passion: shogi, where he became excellent.

The young boy in being a leader, he became naturally the chief oh the shogi's team.

He bears a fan stamp "The King of shogi". In spite of that, he is always a very good go players.