Tsumugi’s nightmare begins when she must share a room with the boss she despises. He drugs her, secretly films her, and blackmails her into helpless submission before raping her. With the air conditioner broken, his tireless assault continues in the sweltering room until morning. He pounds her repeatedly and ejaculates inside two times, three times, and more, his erection refusing to fade as she begs him not to fill her again.