Aizuki Amaya, 40 years old. A stay-at-home wife and mother of one, celebrating her 15th wedding anniversary. While her seemingly prosperous life might appear happy from the outside, her husband, a branch manager at a major insurance company, is constantly away for golf and drinking with colleagues every week. Their teenage son is consumed by soccer practice. Aizuki often finds herself alone at home, her loneliness growing with each passing day. This has led to a desire within her, a yearning for something more fulfilling. As masturbation became a daily ritual, a hobby of sorts, she clearly felt her infidelity desires intensifying. Witness the moment this devoted wife, who has kept her sensual side hidden for 15 years, finally liberates herself.