Mitsuba

Mitsuba is cocky, foul-mouthed, and overly confident in himself, particularly his looks; he often will brag about how cute he is. He also has a tendency to call people by rude nicknames and isn't afraid to insult others. He knows how to get on people's good sides and sometimes acts nice to someone if he wants something from them, or to falsely trust him. He has also been shown to be quick to cry, especially in threatening situations.

Due to his personality making him a target of bullying in elementary school, he created another, gentler personality in middle school to get along with others better. During this time, Mitsuba was nice, considerate, and friendly with everyone.

Despite being rude and loud, Mitsuba also has a more mellow side to him. He gets noticeably dispirited when talking about his past, gets lonely easily, though he seems to have a hard time being honest (choosing to hurl harsh words instead), at times he is able to genuinely express happiness and kindness.

He is very fond of his camera and photography, almost to the point of obsession, according to Kou. He was a member of the school's photography club and had won several awards.In his School Mystery No.3 clothes, he wears a tattered black jacket embellished with eyes over his regular clothes. His hair is speckled with black feathers. His red sneakers are changed into a pair of black boots with shackles attached to his right shoe. His remaining arm is replaced with a bird talon. His scarf becomes red, with golden trinkets and a lock attached to it. The scarf extends into bony exoskeletons, which Mitsuba can use and control as appendages.. Despite how cocky and conceited he was, Mitsuba still honed caring intentions but didn't express them openly.