"The born genius" is the title of the third chapter of the manga, which begins with the protagonist's response to his father's question about whether or not he is possessed. The protagonist tells his father that he is, in fact, a demon, and that he cannot throw beans at him because he is the "oni" , or "devil," in the Japanese game of tag. He says that he knows a trick to prevent him from becoming a demon. He explains that in Asia, there is a demon who runs backwards toward its victims, and this demon is not getting married. He asks his father if he can take off the tag oni's clothes so that he can be the "real" oni for the rest of the year. He tells him that he will be the real oni the whole time. He also tells his dad that he has great news for him: he has found a way to boil beans so that they will not hurt a little girl if he throws them at her.