Everyone on the school bus is a bad guy. Teachers, male students, and regular passengers who have lost their senses due to her G-cup bust are all molested and there is no way to escape! Yuka, who was an idol at school, becomes the target of carnivorous boys after class changes and spends a terrifying third semester. No matter how much she cries, there is no help, and the school bus becomes a cesspit of sexual desire!