Yurina Wakabayashi, who wants to appear, visits under the bondage master and AV director Horai Kasumi. After declaring that she is M and seeing Yurina who is excited to play hard, Kasumi approaches the limit of Yurina with shame and pleasure that goes far beyond her imagination. Yurina isn't pleased, and she draws out the charm of Yurina through various plays and psychological warfare, such as how to take a serious expression. Drop the clothespin with a whip and hang it while playing an enema, how much can you withstand?