A female teacher, Shihori, who was entrusted with leading a school trip, was annoyed by the bad behavior of the director's son, Okumura. The cause is an affair between herself and her chairman, and Shihori can't come out strong. That night, she was suddenly attacked by Okumura in the bathroom! Moreover, she is mercilessly fucked in her trained buttocks by the chairman. However, this is not the end of the story, and Shihori is brought to her students' rooms where she experiences a further tragedy.
