NTR: A Deep Sex Slave Training

Sayaka doesn't want to cum, but her body is throbbing as her brother-in-law's hard member is rubbing up against her. It's supposed to be "training", so she can't let herself feel good, but she can't stop convulsing in pleasure..! (Source: Coolmic) Note: Simultaneously released in long-strip and traditional formats, with 9 episodes and 3 chapters respectively.