Review Detail of AJ_Conquer in The Rise of the Black Plain

i really like this novel and i read it as soon as it updates but there are some things which i don't understand. Author can you please explain although there is a Harem tag but don't you think that you are showing more of a sex as a tool for MC getting something from a females. also why did Minos not kill Carline family? I mean instead of showing how he had sex with Kara and his mother he could have easily killed the king like he didn't with the other royal family. I don't understand the thought behind as the goal of the MC is to end war as fast as possible. or He could have kidnapped Kara and his mother. Besides what was was need for MC to get into bed with Ruth's sister or some other females in Grey sect as it doesn't help in story development. Harem tag is fine but don't you think it should help in character development and story development. All this just shows that MC is not very mature or logical at times and he sometimes thinks of getting laid.