Daibutsu, whose full name is Daibutsu Narano, is a boy who attends the same class as the protagonist Michio. His family home is a temple, which provides a distinctive backdrop for his daily life. In terms of physical appearance, Daibutsu has a large, obese body type, making him one of the bigger children in the group. Despite his size, his personality is laid-back and gentle; he is not a street leader or bully but rather lives happily and peacefully alongside his classmates, especially Michio.

A notable verbal habit is his frequent use of the phrase "~Dabutsu" at the end of his sentences. His motivations appear centered on maintaining a harmonious and cheerful existence within his social circle, without any sign of aggression or ambition for leadership. In the story, his role is that of a friendly supporting classmate, and within the original source material, he holds the unique position of being one of the characters who is aware that the character UB possesses supernatural powers. His key relationships are primarily with Michio, with whom he shares a happy and untroubled friendship. Regarding development, the available information does not detail any significant changes or growth arcs for Daibutsu throughout the narrative, nor does it list any notable special abilities beyond his awareness of UB's powers.