The heir of Yongning Duke, Jun Huailang, is reborn and discovers he is a minor antagonist in a stepmother literature novel.The protagonist, Xue Yan, was an unloved prince, marginalized and schemed against from a young age. After turning dark, he formed factions, supported his younger brother to rise to power, and became a regent with absolute authority. He massacred the young Empress Dowager's entire family and forced her into submission because they harbored a childhood grudge. During this process, the Empress Dowager fell in love with him and willingly became his plaything.The entire book is filled with their scandalous scenes, leaving Jun Huailang trembling with rage. Because this Empress Dowager was none other than his biological sister, and it was his family that got massacred.After being reborn, Jun Huailang, a gentleman through and through, faced with his six-year-old sister, made a firm decision for the first time.He wanted to kill that beast for his sister.—The first time he met Xue Yan, he was being bullied by palace people, pushed around by several young eunuchs.The second time, he was framed, and on the emperor's order, was dragged out and beaten until he bled in front of the ministers.The third time, still injured, he was teased by his brothers and forced to jump into an icy lake in January to retrieve a fan pendant.Jun Huailang, well-versed in the classics, couldn't bring himself to strike, but felt a sense of compassion.As long as he straightened this kid out so he wouldn't become enemies with his sister, he'd let him go. He thought.But he didn't know, this kid was already irredeemably dark.Through his efforts, Xue Yan didn't become enemies with his sister but developed sinister thoughts about him.It wasn't until many years later that he understood what it meant to raise a tiger to court disaster.