Aria Sucuse

A rhythm game about a 10-day sexual encounter with a succubus. You control a male protagonist who must win rhythm-based "sex battles" against the succubus to avoid a binding contract of sexual servitude. Gameplay revolves around timing piston motions to musical notes—hit them correctly to please the succubus and weaken her resolve, or lose and face punitive scenes. The game features multiple endings, over 50 live2D character models with 560+ animations depicting various sexual acts, full voice acting in Japanese, and a gallery mode unlocked through gameplay. Difficulty settings allow players of all skill levels to progress, and chapters can be replayed independently. Some routes include NTR (netorare) content.