As a man of age, Gaku started to become interested in his stepmother Kafuru. Her tall stature of 178 cm and her F-cup breasts... the feminine charm that his classmates lacked, and her kind treatment towards him drew Gaku's heart in deeply, even though they were not blood-related. One day, as usual, Kafuru returned home from her mom's volleyball practice and took a shower. Seeing this, Gaku sneaked into the changing room and picked up Kafuru's discarded clothes. The scent of sweat-soaked practice clothes and panties sent him spiraling into fantasies. Suddenly, the bathroom door opened, and Kafuru saw him...
