Lingerie is wet with shame.

"I want to change my mood from usual..." Keiko (Isshiki Momoko) is confused when her husband gives her obscene underwear. And while her husband was on a business trip, she stared at her secretly wearing obscene underwear in front of the mirror, and remembered herself as a woman, not a wife. However, the man next door peers from the balcony in his obscene underwear. A sense of shame of being seen and the sense of guilt that has led to the awareness of a man other than her husband, Keiko unconsciously begins to sting...