Amanda had thought to side with Gao Xiao for once and when the time comes, she'll have an opportunity to strike him behind his the back. But things escalated upon the comeback of their Chief and when he saw Gao Xiao's, demise she didn't hesitate to get back at him.
He had done deeds that are gruesome, and on that, Amanda couldn't forgive him. His life over the life of her beloved people.
There was one time when she got comfortable in her position. Having a taste of a blissful life sure forget her worries and deals. However, when things turned upside down, as long as this Deputy live, no matter how she lives in blissfulness, she won't get any peace in her heart. It'll always be regret towards the end.
Now that she delivered her will on that man, she now ought to have left in peace. May the Goddess pity her soul this time.
