Kuro no Senki: Isekai Teni Shita Boku ga Saikyou nano wa Bed no Ue dake no You desu

Three years ago, Chrono Crawford found himself sent to another world on the day of his high school entrance exams. Today, he serves as both a lord and general commanding an army of demihumans. In a world where his soldiers face discrimination and hardship, Chrono must use his experience in both worlds to bring about equality for all races. But when a beautiful half-elf girl appears in his bedroom to confess her love, his mission gets a whole lot more personal! Is he ready to start navigating the sexy women of this fantasy world?

(Source: Seven Seas Entertainment)