A school changes its rules and drops the traditional grading system. The only way to pass now is to have sex. The more sex you have, the better your chances.
A series of short stories based on the adult manga by Araiguma. The first one involves a landlord's daughter looking after a sick tenant (who she secretly has a crush on). In another part of town, a step-brother and a step-sister reevaluate their relationship.
