A school dominated by lust, eroded by a space that absorbs life energy called Meiko. Sister Eri, who is in the confession room, and Asama, the main character who has a vaginal cum shot in Aoi who is working part-time in the purchasing department, come to Meikyu who loses control of her sexual desire. On the other hand, Rena is in estrus even though Meiko hasn't visited. Meiko, which has begun to erode into the real world, makes even Shinya, who was a childhood friend of Asama, a pleasure addiction ...