Hyakkasou 5 Rasetsu Yasha Sen Chokou

Two female martial artists, now working as maids, fiercely compete for the privilege of serving their master in bed. They initially try to outdo one another with their techniques before eventually teaming up to pleasure him together. However, even their combined efforts are completely overwhelmed by their master's boundless sexual stamina. In the aftermath of their defeat, their own martial arts master suddenly arrives on the scene.