Demon Emperor's Nanny: All My Daughters Are Empresses

The Eternal Night Demon Emperor Lu Qing'an was tired of killing, so he married Xu Qingying incognito and secretly helped her become the empress. Unexpectedly, on the day Xu Qingying proclaimed himself emperor, she proposed a divorce in public and took away half of his cultivation. Lu Qing'an signed the contract calmly, activated the divorce system and received a million-fold return in cultivation, and returned to the Demon Realm with his two girls. Over the years, he trained his daughter to become an empress, but his ex-wife, who used to be aloof and aloof, came to visit his daughter in embarrassment on the day she ascended the throne.