Oshikake! Bakunyuu Gyaru Harem Seikatsu OVA

A middle-aged man’s company goes bankrupt, leaving him unemployed and unable to pay rent. While walking, he encounters four young schoolgirls who accuse him of being a pervert after catching him staring at them. They blackmail him, initially asking for money, but discovering his financial situation, they propose moving into his apartment in exchange for sexual services.