FSDSS-733 - The slightly crazy daily life of a devoted older sister supporting a large, all-male family. Yoshitaka Nini.

Two years ago, the mother passed away, leaving the father and five brothers, a total of six family members. Nini was originally a kind person, but after losing her mother, maternal instincts blossomed, and her kindness became excessive, to the point where she routinely handles the sexual desires of her male family members... From morning till night, she is constantly asked for her body and provides ejaculation support everywhere in the house! Mako works full-time for the family! She supports the all-male family single-handedly.