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After her parents' divorce, 'Sachikawa Himemi (Sasaki Saki)' moved into an apartment.
She has a dazed atmosphere and a plain appearance, but she is also a player who has qualified for the national tournament in the tennis club. Her problem is balancing studies and club activities.
In this situation, a man living in the next room of the apartment she moved into offers to help her study during his free time, claiming he is a teacher.
On a day off when her mother goes to work, Himemi and the man are left alone together.
The man suggests a study method to improve concentration while consulting with Himemi.
The notebook PC handed to her displays an 'induction video'.
What becomes clear from there is Himemi's constitution, her body.
The man begins his actions to mold Himemi into his ideal sex doll.
