GAJK-013 A high school girl bound and trained in a warehouse, a perverted uncle lusts after the image of his desired woman and threatens her, continuing to train her in a dark, damp secret room. The poor country girl Mitsuki Nagisa.

Mitsuki, who lives in a rural town, regularly works part-time at her uncle's inn during the summer vacation. I finished cleaning today and took a break in the bath. However, my uncle was looking at the figure with an irritating look. "I'm starting to look more like her mother..." says my uncle, who remembers her mother who once had feelings for her. The next day, her uncle, who called Mitsuki to clean her storehouse, tied her up in her darkness and fucked her as she desired. The summer vacation of training hell was about to begin.