Kai Minamisawa is a B-rank Attacker and a member of Ikoma Unit.

Minamisawa has a laid-back and cheerful personality, such that he can almost always be seen with a big smile on his lips. He is very easily excitable and undeterred by resistance to his explosive enthusiasm, which may cause him to barge into a conversation with a wildly exaggerated claim or excessive eagerness. He appears to profoundly enjoy combat. These traits add up to constitute his marked tendency to rush into battle on his own, ignoring his teammates' advice. It is only after he finds himself in a pinch that he is willing to heed their warnings and proceed with caution. Although he is opposed to multiple teams ganging up on a single target, he is willing to go along with it, and has no qualms about using deception.

(Source: World Trigger Wiki)