To make a living, Airi started working part-time at a restaurant. She had a good relationship with the manager, Oki, and her work was going well, but... Oki was Kokoro to Airi 's pretty appearance, and being alone with her was enough to make his pent-up lust explode. Airi refused the sudden Airi, but she was swept away by the abyss of pleasure, unable to resist the desire deep inside her body... Oki appeared again before her, Kokoro by the tingling afterglow...