While Tsuchigomori seems like a normal, caring and somewhat meek teacher in his human disguise, he is actually sarcastic, mischievous and quite short-tempered. Although he is a teacher, he is shown to dislike children because of their noisy attitudes. Tsuchigomori also has an odd sense of humor and likes to joke around, such as saying that he likes to eat human children, only to be met with terrified looks in response.

Despite him claiming that he only pretends to care about his students, he has been shown to actually genuinely care about them on various occasions. When asked why he makes his teacher persona so different than his actual personality as a supernatural, he answers that it's simply because he feels like it.