Three sisters get trapped in a world where mahjong tiles are actual currency, which means every hand they play has real stakes. The premise is absurd enough that it commits fully to it, a mahjong rabbit overlord isn't a joke, it's the final boss. What makes this work is that the OVA doesn't wink at the camera; it treats a ridiculous high-concept setup with the same narrative weight as a genuine fantasy adventure. You're watching people solve the mystery of their imprisonment one tile combination at a time. The ecchi framing undercuts nothing, it's just there, the way it was in 1990. This is what happens when someone decides to make a mahjong adventure story seriously, and then doesn't apologize for any of it.

Kasumi, Miki and Shouko, three sisters who play mahjong, are sent into a strange world where mahjong tiles serve as money. The only way back to their own world is to beat the rabbit who rules the land, and that rabbit plays mahjong too. The OVA is a sequel to Super Real Mahjong, and it mixes comedy and fantasy with ecchi content.