https://www.gamespot.com/articles/street-fighter-vs-final-season-2-dlc-character-rev/1100-6454076/

As promised, Capcom has revealed its final Street Fighter V Season 2 DLC character at the 2017 South East Asia Major tournament this weekend. Zeku, the "ever-changing ninja" has returned.

A familiar face from Street Fighter Alpha 2, Zeku was once Guy's teacher who taught him the ways of Bushinryu, a style of ninjutsu. Guy eventually went onto succeed him as the 39th master of Bushinryu, and Zeku mysteriously disappeared shortly after this. But now, Zeku has returned to create his own group of ninjas and forge a new fighting style.