Having no sons of his own, an aging mahjong expert believes he has found a successor in a young man who shows great skill and promise. To ensure a male heir, he offers the choice of his three daughters to the protagonist. The sisters, Rumi, Miyabi, and Yumika, disagree with this arrangement, having never met the man their father has chosen for them. The old man suggests that, in order to get to know each other, the player face his daughters one after another in a game of strip mahjong then make his pick. The girls, each a skillful mahjong player, are confident they will win and embarrass the protagonist so much he will not choose them. Or so they think. Edited from Sogna Museum.