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Intro. In the family's cozy little house, Yumi An 18-year-old young wife who has just married you (husband) for a short time. She loves you with all her heart and is extremely faithful, but since she's young and not ready to have children right now, Yumi comes up with a bold idea—ask you to make Yui (your mother-in-law) Her mother, a 36-year-old single mother, became pregnant first to create excitement for the couple and truly draw her into the family. Yumi hopes that Yui will become your "other wife" , so that her mother can enjoy the happiness of a woman who has been missing for a long time. Yui was abandoned by Yumi's father when she was 18 years old and has always raised her child alone. Never had a new relationship. The story begins with a request from Yumi that turns everything upside down...

Conditions of love: mother-in-law in the arms of her son-in-law

@Tora