The Rapeman 6.

After Sunflower Orphanage burns down, Keisuke and Uncle decide to re-open Rapeman Services to raise money for repairs. When a wife requests her cheating husband's mistress to be raped, the vigilante becomes embroiled in a conspiracy involving fraud, suicide, and a shady matchmaker. All the while, Keisuke is relentlessly pursued by a clingy spinster desperate for his hand in marriage.