Kuro no Senki II: It seems that I, who has moved to another world, is the strongest only on the bed

On the day of his high school entrance exam, a boy named Crono is suddenly transported to another world.
He became the commander of the demi-human army, won many great victories, and is feted as a lord.
He gathers beautiful women one after another...
A royal-road war story with battles, domestic politics, and sex!

(Source: Kadokawa, translated)

*Note: Starts from Chapter 9 of the prequel, with a new version of Chapter 10 and 11.*