|Junior vs. Yang||"Yellow" Trailer||Lost|
Junior is the son of Hei Xiong, the former head of the Xiong Family, which was the then-largest crime syndicate in Vale. However, after the events of RWBY: Roman Holiday, Roman Torchwick becomes the criminal kingpin of the kingdom, dethroning Xiong. It appears that Junior inherits his father's syndicate after his apparent demise in a gang war between the Xiong Family and Spider.
Not much is known about Junior's past. It is suggested that he has a history as an information broker, keeping tabs on the various goings-on of Remnant. Through his syndicate's control of the Vale Police Department, he is said to have a reputation for knowing everything and has business connections with underworld figures, Roman amongst them.
Junior runs a club and has a large number of henchmen, though it is not clear when it was established or if he has any business partners.
Yang Xiao Long arrives at the club and walks up to the bar to pressure Junior into telling her what he knew about a woman she was trying to find. When he says he does not have information about the woman, Yang begins to leave, but Junior has his men surround her due to her physically aggressive behavior toward him.
She feigns at kissing Junior then sucker-punches him to the other side of the club. After Yang defeats of all his subordinates, Junior fights her himself. After he rips some of her hair out, Yang activates her Semblance and knocks him out the window of the severely damaged club.
Following his defeat at Yang's hands, he resigns himself to help give her information on Raven Branwen. However, he revealed to Yang that he really didn't know anything about her and was unable to her with her search for her mother.
Junior tells them that Torchwick contracted his men to assist in Dust robberies, but Torchwick was apparently disappointed with his men's performance as he never heard from Torchwick or his men again. It's implied that they were arrested by the Vale Police Department.