The concept is actually genius l for a lewd game. You undress anime girls by cutting off their outfits piece by piece. The edgeloops of the character models being the path you walk along.

but after Stage 2 they decide to put alot of weird monsters in the game instead of anime girls so I dont know how to feel about that.

The game peaks with the Soul Edge Girl (which is also Stage 2) so you can stop after that. It only goes downhill from there.