Mayuki and Yoshio met in college and have been dating for half a year. They recently moved in together and have a happy life. Since middle school, Yoshio has been a weak person and was always bullied. And by chance, while hanging out with Mayuki, Yoshio met Nakata, the senior who often bullied him in high school. As soon as he met Yoshio again, Nakata immediately bullied him right in front of Mayuki. He also forced Yoshio to take Mayuki to eat hot pot at his house. Yoshio was very afraid of Nakata so he had to listen to him. They both went to Nakata's house to eat hot pot, not knowing that he had targeted his beautiful girlfriend with big breasts. Nakata repeatedly plied Yoshio with alcohol, causing him to quickly collapse and lose consciousness. Taking advantage of this, he forcefully forced Mayuki to suck his cock. He secretly filmed this scene to force her to serve him sexually next time. Although initially resistant, Nakata's huge cock, new positions, and wild sexual acts made Mayuki gradually sink deeper into sexual pleasure. And then she no longer felt the feeling when having sex with her lover, she went to his house to find Nakata just with the desire to be sexually satisfied by him...