Three Kingdoms: More Children, More Blessings, Marrying Cai Yan from the Start

He transmigrates to the Three Kingdoms era and becomes the chief of a mountain stronghold. From the start, he marries Cai Yan and awakens the More Children, More Blessings System. As long as he marries and has children, he can gain an unlimited supply of lifespan, strength, and troops. [Ding!] [Congratulations, Host, on marrying Cai Yan.] [You have received the Eighteen Riders of Yanyun.] [Ding!] [Congratulations, Host, Cai Yan is pregnant.] [You have received three thousand Imperial Guards.] [Ding!] [Congratulations, Host, Cai Yan has given birth to a son.] [You have received ten thousand Fangtian Cavalry.] [...] When Feng Yang brings Diao Chan, Zhen Mi, Da Qiao, Xiao Qiao... all back home, a million divine troops descend from the heavens! He unifies the Three Kingdoms!