What is a nukige? Put simply, nuki = fap. A nukige exists entirely for you to jerk off to. Sure, story-driven 18+ visual novels at least have that thin fig leaf of “I’m here for the plot,” but a nukige is there to stimulate your junk directly, no pretense, no bullshit. Sei ○ Onna ○○ Ikusei Gakuen is exactly that. As the title suggests, the goal is to drag the girls at this school down into a bunch of living sex toys.