Mayuki is an extremely beautiful teacher who knows how to care for others, so she is loved by many people, and Yuki is one of them. This time, while preparing for the school festival, Yuki accidentally got wet. Worried that her student would catch a cold, Mayuki took him home to take a bath and change clothes. Today is also the day her boyfriend comes to see her after three months apart. But just because the subway stopped working, he gave up, making Mayuki feel lonely and disappointed. Because the subway is no longer running, Yuki will also spend the night here. Seeing the lonely teacher drinking, Yuki could not resist her beautiful body and decided to go too far! Although she did not agree at first, Yuki's big dick and abundant health quickly conquered Mayuki. She ignored her status as a teacher, ignored her heartless boyfriend and immersed herself in sexual pleasure with her student...