Early morning, a quiet residential neighborhood. The morning scene unfolds inside a household. A woman wearing an apron sways her hips in a tight skirt as she diligently wipes the floor, her daily routine. Her beautiful profile. From behind, the deep cleavage of her breasts is slightly visible through her clothes. Yet her expression seems troubled. She occasionally stops cleaning, gazing meaningfully at the "bathroom door" behind her, letting out a sigh. Even after seeing her husband off to work, she stares at the same door again, sighing deeply. Turning around, she approaches the bathroom door, hesitantly reaching for the doorknob—when suddenly, something happens.