Quartet

Shun is a third-generation descendant of a Japanese orphan left behind in China during World War II. Takeru is a lonely and reckless young man whose family was murdered when he was a child. Kasumi, whose past and background are equally troubled, joins them. They become collaborators after being recruited by Kuchinawa for a police undercover operation to confront a drug cartel in Chinatown. The drama follows their ability to work together and grow individually.