Madam Gu berpura-pura bodoh lagi

Five years ago, a fire claimed the lives of her entire family, driving her best friend to madness. Over the course of five years, she feigned madness and foolishness, finally marrying into the Gu family, becoming the "mobile blood bank" for the ailing young master, all in pursuit of uncovering the truth of that fateful day and exacting vengeance on the true culprit!