After answering the summons of Momoka, the school nurse, the protagonist is forced to engage in various sexual acts with her.Later, the protagonist accidentally witnesses Momoka's younger sister, Maron, masturbating. He is discovered and Maron counterattacks by stripping him and giving hand and foot jobs. One thing leads to another and he ends up taking her virginity.Finally, the three of them go to a public bathhouse and end up in a threesome play.

Based on the game by Lune loves K.

A hot teacher just cannot stop thinking about a student. Everyday she masturbates thinking about him, even when she is giving a class she just cannot stop looking at him and having dirty thoughts.One day, she just can't stand it anymore and decides to take action after seeing her beloved student being so close to another girl. She then informs her beloved student she has something to talk with him after class in the Teacher's Lounge... thus this forbidden love between a teacher and a student begins - a world of lust awaits.

This is a short released as part of the 2006 boxset.On a late evening, student Kurumi Imari is leaving her Academy classroom. As she makes her way down the hallway wearing her backpack, a male student is secretly stalking her every move. He suddenly lunches forwards and grabs the girl by her breasts. She screams and tries to push him away, but he covers her mouth and holds down her arm behind her back.Her fellow student drags her into a storage room and takes out his penis. Shocked, Imari tries to run, but he painfully grabs her by her hair and forces her to give him oral sex. Afterwards, Imari quickly tries to make a run for the door again without success. The boy again quickly grabs her by her breasts and starts groping them. He proceeds to strip off her clothes and rapes her.After the boy licks her feet and continues having sex with her, Imari stops resisting and gives in to her arousal. She starts riding her attacker willingly, and even affectionately licks him back.Finally, the boy ejaculates over Imari's half naked body. He grabs her striped panties and puts them in his pocket before walking out and closing the door, leaving behind a panting and soiled Imari.