Bishoujo Battle Hanafuda Koi-Koi is a Casual, Sexual Content, Nudity PC game, developed by Zoo Corporation, available on Steam and published by Zoo Corporation.
The Bishoujo girls from "Rikku☆Jiasu" mobile military turn-based strategy game from Japan are here! And they want to play Koi-Koi, the most famous Japanese flower card game with you. Battle the girls in a tour around Japan. Or hop on multiplayer and compete against Koi-Koi masters around the world.