Mari-chan, a black-haired girl from the sports club. Her large buttocks, toned by sports, are her charm. First, she introduces herself to the camera, sharing her first-time experience and performing selfie masturbation. Then, we capture everyday events in Mari-chan's life. While taking a bath and urinating, her drunk father enters… After returning from club activities with back pain, she visits a therapy clinic… When her throat and stomach hurt, she goes to the nearby doctor… This work is packed with Mari-chan's appeal！！
