In The Brothers Sun Season 1, Ma Sun (aka Eileen, played by Michelle Yeoh) does just enough to pave a new path for herself and her family. With her tryannical husband, Big Sun, thrown into jail, Eileen heads back home to Taiwan to take over the Jade Dragons, the most elite Triad arm existing in the world.
Source:https://www.cbr.com/the-brothers-sun-season-2-setup/