Like the name said the game is a strip UNO! There are 5 girls to select and to play with. Loser of each round strip and once there are nothing left they enjoy themself or help each other out in a naughty Yuri action.
-*Story*-
After the event in Kinetic Chronicle the young treasure hunter, Feley made her new home in Tendoryu, a city of tentacle monsters. While tentacle monsters never touch her for a certain reason, she still feels awkward when seeing them having their way with other girls in her daily life. And though she never tells anyone, her friends notice that and want to help her relieve her desire inside. Feley strongly refuse, and her friends do not back down either, the conflict happens and they decide to solve it all with a popular game in Tendoryu, the Strip UNO.