The package he received was actually a sexy bra! Yamada mistakenly received and opened a parcel addressed to Yumiko, the beautiful wife who lives in the apartment next door. When he hurriedly took the package to his neighbor, she invited him over for tea as a thank you for taking the trouble to deliver it. Yamada, a virgin, couldn't stop his heart from pounding at the sight of her voluptuous breasts peeking out from the gap in her shirt, which was boldly open at the chest. "Hey, do you think this underwear looks good?" Yumiko suddenly changed into the bra that had just arrived and asked Yamada what he thought of it. Yes, it was all a honey trap disguised as a coincidence by a cheating wife who had too much free time and sexual desire.