Кано Шюя

Kano is a young man who is part of the Mekakushi Dan. He outwardly has an unfocused, aloof personality and always has a smile on his face. Because he teases Marry, Momo, and Kido a lot, he's often considered to be a flirt, but when it counts, he's worth relying on. His actual personality, which he hides behind his ability the majority of the time, is quite subdued and mature. He seems to be mistrustful of others and carries around self-loathing tendencies, believing himself to be "useless".

(Source: Kagerou Project Wikia)