Iris wakes up to find her former friend Meiri, now calling herself Riruru, has turned her into a commodity. Through a biological reconstruction called Ecstasia, Iris's libido and sensitivity are artificially amplified, stripping away her willpower. Forced into prostitution, Iris is subjected to various clients, including a fetishist and a tentacled alien, eventually succumbing to the overwhelming pleasure and losing her noble identity to her new, enslaved existence.