"Two male protagonists + two female protagonists + multiplayer chivalry"
The ancestor of Sikong once rescued the ancestors of the Yue family. The descendant of the Yue family was entrusted by the ancestor and had to go to the Duke's Mansion to repay the favor. Hongying Dajian feared that her niece was not yet experienced enough, so she brought Yue Hua, a female guest from the Yue clan who was flying swords, into the Duke's palace to repay her favor. After three years of not being favored by his son Sikong Hongpei, he returned victoriously from the frontline battles and was appointed commander. He married Luo Qingcheng, a female general from Luomen, which angered the two swordsmen and made a big fuss in the Duke's palace and fled.
After Hongying Dajian left the house, Sikong Hongpei and Luo Qingcheng held a grand wedding banquet, which attracted hundreds of bandits to the capital, who wanted to bloodbath the Duke's palace. A newly born hero rescued the Duke's palace and used the Zhanlu sword to wipe out the bandits, thus causing unprovoked trouble for himself.
Because he helped the wrong person, Hongying Dajian was angered and took his disciples to settle accounts with Shaoxia, which led to a legendary story "Hongying troubles Zhanlu"...