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Rion, who was told by her boyfriend, "You have small breasts and you're bad at sex," was walking dejectedly when she ran into her relative's uncle. When she confided in her uncle, he said, "I'll teach you how to make your breasts bigger and how to get better at sex!" and they decided to go to a hotel together... While feeling uneasy about doing erotic things with her uncle, Rion, who wants to try her best for her boyfriend, challenges various erotic things as her uncle tells her to do...! There are no performers under the age of 18 in this work.
