Her husband always pursued his wife Reiko with the passion of a newlywed. She felt truly fulfilled and happy in his warmth—until one day, he told her, "I want to see you climax from anal stimulation." Shocked and confused by his words, she began masturbating anally, only to discover her body reacting intensely to the sensation. Her husband, growing increasingly aroused, started recording her on his phone, deepening her embarrassment. Yet still unsatisfied, he devised a new plan: inviting his junior coworker, Miyazaki, over to their home.