Former twenty-something shut-in Mahiro Oyama was transformed into a girl by an experimental drug… and now he's a seventh grader, too! As he adjusts to schoolg

Former shut-in Mahiro Oyama was transformed into a girl thanks to his little sister Mihari's experimental drug… and he's starting to like it! But his independ

One day, loser shut-in Mahiro was suddenly transformed into a girl by his little sister Mihari, and now he's forced to adjust to his new life as a she! Mahiro e

Mahiro Oyama was just a normal erotic-game loving dude...until he woke up one morning as a woman! Turns out his mad-scientist little sister, Mihari, tried out o

Big brother has nearly mastered the feminine mind! Former shut-in Mahiro Oyama was turned into a junior high school girl after being drugged by his little siste