Kanna had a complex about her big breasts. Unable to talk to friends of the same generation, he reveals his worries to his homeroom teacher, Haneda. Because of her big breasts, she was often teased by those around her, which made her unable to stand it. When Kana confessed her concerns, her homeroom teacher Haneda said, "It's not strange that having big breasts is big, but rather a gift given by God. Bigger and small. You're special," and Kana's heart eventually turns to Haneda, a nerd teacher... The innocent Kana, who is innocent, falls into an affair through extreme breast service, with the desire to turn her back to her homeroom teacher...
