[Reducing Mosaic]GAJK-039 A high school girl bound and trained in a warehouse. A pure girl who apprenticed to take over her grandfather's restaurant. Falling into perverted hobbies under the guise of training... Tsutsumi Natsume

Natsume, the granddaughter, was surprised to hear that her grandfather's long-running Western restaurant would be closing. Upon hearing the reason—age and lack of a successor—she offered, "I'll take over the shop, so please train me." From then on, she started learning cooking from her grandfather every day after school. A grandfather watches his granddaughter improve over time. However, one day, he starts to feel impure emotions when he sees her getting into the bath after staining her uniform…