(例大祭7) [にゅうたいぷ研究所 (理)] とらマルP! (東方Project)
#45375 - The ladies in return, jumped 2 checkers jacket and underwear men took off their jackets, but did not have to take off their underwear, because to lose your underwear, you need to have lost your pants and also two underwear checkers. Then I am not sure who would be considered the loser, but there are all kinds of possibilities. It is risky, but they go for it.