Red Mansion: Marry Cheng Niao Niao and Lead the Dragon Cavalry on an Expedition

Jia Chen transformed into a concubine of the Jia family, and awakened the sign-in system to obtain Huo Qubing's unique skills and three thousand snow dragon riders. Marrying the fourth wife of the Cheng family, Bu Ying guards the mansion, and goes to Yangzhou on the imperial mission to suppress bandits. He crushes Tianlei Village with his talents as a cavalry commander, and changes the destiny of the common son with his military exploits.