The boy "Nao" who was worried that he was bigger than his short back, now he is confident that he often has sex with his sister-in-law's friends "Nagisa" and "Yukiko". On the other hand, my sister-in-law's "Chiaki", who was thrilled by her younger brother, accepted a forcible invitation from her younger brother .

Yuina, a girl in love with her non-biological brother, lives tormented by her lack of self-confidence. One day, she is guided to an unknown world by a mysterious voice. Without understanding what is happening, she is attacked by a man. In that desperate moment, she is saved by the specter of a succubus that possesses […]