Chichiue to Ore to - Yabu no Dekiai to Choukyou

On the day I became an adult, my virginity was scattered by my beloved foster father. Alexis/Alexia was raised as a boy and abused when she was young. Due to this, she ended up being adopted by her mother's younger male cousin. A handsome and wealthy man, he raised her with much love, and the two lived together happily. However, on the day of her reaching adulthood, their relationship was about to change. An erotic manga where both have unrequited feelings for one another.