Mikako, who was visiting her childhood friends to check on them, was asked to help them with sexual relief one day. "There's no way I can go along with that!" she desperately refused, but they held her down and raped her... From that day on, she was forced to do deep throating, creampied, toyed with, and foursomes, wearing the costumes they had prepared for her, and she was forced to do sexual relief. No matter how she struggled, she was violated and fell into despair, but she was awakened to the sweet pleasure of being completely dominated...