Dochinpira 20: The Enchanting Kogyaru Heaven.

Professional seducer Jin Kaito approaches a girl named Rumi, thinking she’s just another "task". But it turns out she’s part of a kogyaru-style honeypot scam and the thug Toda, her boss, nearly manages to shake Jin down for money. Jin punches Toda and makes a quick escape, but Rumi inexplicably is clinging to him wherever he goes. Soon, Toda learns that Rumi is actually a runaway daughter from a wealthy family. Sensing opportunity, he plans to kidnap her and extort her older brother. When Jin refuses to cooperate, Toda takes matters into his own hands and places a threatening call... Things spiral in a completely unexpected direction when Toda discovers that her brother is a terrifying and powerful man.