The Devil and the Daylong Brothers

Miss Jin, a female detective, meets the head of a human trafficking organization in an undercover plan to destroy it. But she falls into their trap and gets caught. Jin's younger brother and two young men who both have unrequited love for Jin try to save her, but they fail due to the appearance of The Twin Light Brothersrothers. However, Detective Kim defeats The Twin Light Brothers and rescues Jin from the villain's lair.