When my husband was away on a business trip, my beloved brother, who lived at home, suddenly moved to Tokyo. Natsuki, his older brother, offers to use her spare room, and he accepts the offer. When I asked her brother why she came to Tokyo, he told me that he had broken up with her because of sex, so he wanted to hone his sex techniques at her entertainment business. However, the prostitute she was looking for had quit her job, so her brother, at a loss, took advantage of her sister's personality and offered her a practice table. Unable to refuse her beloved brother's request, she reluctantly accepted.
