One day, Shinji, a dull virgin brother, and Emiri, a gal's younger sister, switch bodies. Shinji, who has become a gal, has a lesbian kiss at his sister's workplace, and is forced to lose her virginity (virginity?)! In the confusion between brothers and sisters, at last she asked her sister to accept her boyfriend and made fellatio. Love SEX with my sister from my brother's complicated feelings! ? What will happen to the two of them, fate and how! ?
