Mai Shirakawa reenacts a scandalous night between a married teacher and her male colleague. While scouting a school-trip destination, his scheme leaves them sharing a room. She initially resists, but his technique quickly overwhelms her: fingering makes her cum, a blindfolded forced deep-throat ends with a load in her mouth, and submissive sex ends in a creampie. Though she knows she is betraying her husband, the pleasure completely takes over.