Oshiri Kajiri Mushi XVIII is a 10-year-old insect who attends Biting School so he can one day inherit his family's Biting Shop. More than anything, he loves to sing and dance cheerfully. A bite from a Bottom Biting Bug lifts people's spirits: slouchers straighten up, gloomy folks start laughing, and the timid suddenly feel sure of themselves, until they seem transformed. Still, even a Bottom Biting Bug slips up plenty. In this third season of the short-form gag comedy, the laughs come from ordinary daily-life moments, with humor pitched at young viewers.