[Trapped in an Uncontrollable Affair with an Overly Kind Mom Friend] Troubled by a sexless marriage, Yuma visits a delivery health service to satisfy his pent-up desires. To his shock, Reina, his fellow mom friend, is the one waiting for him. As Yuma tries to leave in a panic, she smiles gently with a professional face and says, "The fee has already been paid," inviting him in. From that day on, Yuma becomes a captive to the immoral pleasure provided by his mom friend, and despite knowing it's wrong, he finds himself heading back to the shop once again...