Yang Xiao Long

Yang Xiao Long, best known simply as Sunny Little Dragon, is one of the protagonists of the anime-styled RWBY game series. Yang is Ruby's older half-sister and the fourth member of Team RWBY. With hair as fiery as her personality, Yang Xiao Long tackles all problems head on, literally. There are very few things that can stand in her way when she puts her mind(fists) to it.

She wields twin shotgun gauntlets called Ember Celica. Her Semblance, "Burn", works on a "recoil-based system": whenever Yang takes a hit, her strength, toughness and striking power rise in proportion to her injuries. Her glowing hair and eye color change are caused by excess energy from the buildup, which also results in Yang often acting very "hotheaded" in battle.

History
The older half-sister of Ruby Rose and the fourth member of Team RWBY, her early years were marred with having to take care of her little sister after her birth mother, Raven Branwen, walked out and Ruby's mother, Summer Rose, died. A lonely girl hiding behind a boisterous and party-loving attitude, Yang seeks to make sure Ruby is protected at all costs, even happily accepting her admission into Beacon Academy.

Trivia

 * She shares a same Japanese voice actress as Yukiko Amagi of the Persona 4 game series.