虏ノ锁～The lewd wedge that seizes virgins～ Volume 1: Everyday life stolen!

Mio Yunoki attends a school where both academics and sports are at a high level, and she spends busy but fun days with her childhood friend Rinka Ayukawa, who is the president of the student council, her cousin Yui Ikoma, and Konomi Asahina, a junior in the student council who adores her. spending time. Since her parents mainly work overseas, she is rarely home, but she doesn't feel lonely because she has a live-in helper, Shiori Toya. She and Shiori thought of each other as sisters, and their relationship was like family. Mio is living a fulfilling life. But one day, an unexpected misfortune befalls her.