Moriguchi Takuma has a big problem on his mind. He had just moved into a new apartment in the Hanazono housing complex, where he was enjoying a blissful newlywed life with his beloved wife, Aya. Yet no matter how many times he tried, their sex life never went well… Troubled, Takuma decided to consult his sister-in-law, Madoka, who lived nearby, asking how he could make things work better with Aya in bed. "Okay. I'll give you lessons to help your married life go smoothly." After consulting with Madoka, Takuma found himself involved with a variety of women living around him—a pregnant woman, foreign wives, wives struggling with sexual incompatibility, a widow, and more... Entangling himself with 11 unique and sexually frustrated married women, The curtain for Takuma's netori and harem life rises!