The man Koharu loved wasn’t cheating on her…he was cheating on his wife with her! And not only that…he was the third guy in a row to do so. Dejected, she leaves Tokyo for her hometown, and rejects a future of love and marriage for a simpler life. But things have changed—her parents are struggling, the café they ran is closed, and a creepy man keeps following her around. She thinks this may be it for her, until she learns that her hometown has allowed polygamous marriage, and she’s in that man’s sights as his third wife!
"I'll leave the family." Yuzu, the first wife of the Date family, is pregnant, and it's anyone's guess who the father could be. Confused and distraught, she flees home and seeks help from an unexpected source: Madoka, her ex-sister-wife! When Yuzu sees the former second wife living a solid life on her own after the divorce, she decides to raise her unborn child as a single mother. Is the Date family's harem marriage about to turn monogamous?!