Michael is a 28-year-old, unfulfilled Korean-American. He is an accounting worker with a seemingly unfulfilled life, struggling with his ability to transform into a He is an accounting worker with a seemingly unfulfilled life, struggling with his ability to transform into a butterfly. . the morpho menelaus and papilio ulysses, which are known for their striking blue and shimmering wings. He has the ability to transform into a butterfly, specifically a mix of the Morpho menelaus and Papilio ulysses, under stress.

Climber is a shy, somewhat neurotic, and simple-minded cloth mannequin with very solid morals of friendship. Climber believes in making himself useful to just about anyone he meets, regardless of what the task they have is. He’s also very naive, so he’s likely to believe anything told to him. That doesn’t mean he’s stupid though, he's just never really been exposed to the real world. Despite this, he can also be upbeat and cheery when he wants to be. The only time you will ever see Climber angry is if his fears about his usefulness get involved, or when The Big Bad's energy gets to him. He also seems to not like fire or cigarettes when seen by his interaction with Chimbley.

Although Kazuki's face makes him appear zoned out or uninterested, he is actually quite the opposite. As a child, Kazuki almost always involved himself in Shōya Ishida's antics, as his daredevil mindset complimented Kazuki’s carefree yet enthusiastic attitude. Unlike his friend, Kazuki appeared to be a more responsible and hard working student, attending cram school so he could succeed in middle school and beyond. He may also have been a member of the Boy Scouts, indicated by the text on the flag he carried around.