Illegitimate son of the shadowy Seiji Munakata, Kubota is fascinated by everything, but attached to nothing. After joining Izumo more or less on a whim, his calm exterior leads enemies and friends alike to underestimate him, until Kubota destroys Tojou's headquarters on his way out of the Yakuza world.
He is seen as calm, collected, and focused, as well as cool, callous, and aloof. He is cruel and insensitive, but at the same time, childish and sweet. To both friends and enemies, they find him terrifying at times—whether because he can insensitively break a man's arm, or because of his smile. He is never seen without a cigarette, and his favored brand is Seven Stars.
He is never seen without a cigarette, and his favored brand is Seven Stars. He's extremely possessive of Tokitou, and is a very talented mahjong player.
