Her stepfather doesn't have a job and just lounges around at home with nothing to do. For Riho, he is her mother's new husband, but when her mother is not around, she has a rotten relationship with him, where he treats her as a sex slave and cums inside her, whether she likes it or not. On this day, while her mother is away on the night shift, her stepfather approaches her with a fishy smell and Riho refuses him with all her might. However, Riho is more worried than anything that her refusal will worsen the relationship between her mother and this devilish stepfather, and after a struggle in her mind, she accepts to become her stepfather's plaything. He licks her whole body, shoves his filthy cock into her mouth, and shoves his thick cock deep into her vagina, and he cums inside her as if it were natural...