Masato turns the mysterious device against the curvaceous Shinjo sisters in a calculated trap, starting with Hina who unknowingly fastens the choker around her neck. Her voice betrays her will while her body sways in obedient rhythm, yielding to oral commands and the sway of her big boobs as ahegao expressions of overwhelming sensation take hold. Serina’s attempt to intervene only seals her own surrender when the device activates, drawing both sisters deeper into the intoxicating pull of creampie bliss and total submission. In this hentai episode they discover the forbidden thrill of being controlled.