The story begins with the fact that a few days ago, a charming young woman got a job at the house of her friend, whom she was in love with, but could not admit her feelings to him. As a maid, she performed her duties of cleaning, cooking, and meeting the needs of her employer.

A woman named Ayaki is a cute milf teacher at an academy. She has a black belt in karate and big tits, which conquered her students. But it's not so easy to hit on her, so only blackmail will help.

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The main character, Kei-kun, arrives in a coastal town and enters the Andrewdschool. He plans to spend several years here. One day, he saves a girl named Mia, who falls in love with him at first sight. However, she is hesitant to admit her feelings and turns to her twin sister Yumi for help.