Kenji is a young man who admires Nao, a beautiful housewife living next door with charmingly slender limbs. One evening, Kenji finds Nao passed out drunk in front of her entrance. Though hesitant, he invites her into his home to take care of her. Seeing Nao's defenseless form as she falls asleep on his bed, Kenji becomes aroused and follows his desires, pressing his lips to hers... This chance encounter sparks an illicit affair. With a secret signal known only to the two of them, Nao hangs a single yellow handkerchief on her balcony today, inviting her neighbor over once again...
