The supporting character's harem is very normal - Chapter 230 The Count Title

Transmigrating into a mystical and eerie world, Fan Wu gains a special ability: a system to allocate attribute points! By slaying demons and monsters, he earns points to enhance his own attributes!From then on, a peculiarly muscular Taoist priest appears in this supernatural world.Facing trembling demons and monsters, Fan Wu reveals a ferocious grin.“Your purity is too low!”“System, enhance my stats!”

Gu Chaoyan is the eldest daughter of the Gu Family, yet the least favorite one. She is mostly despised and belittled by everyone around, only because she isn’t pretty.

Shen Shi obtained a trading platform that was based 3000 years in the future. Everything from the current age became antiques there and was worth a lot of money.However, he also discovered that the world would be invaded by aliens three years from now. Mankind would fall and the dark Galactic Era would thus begin.The world would then undergo enormous changes that it had never experienced in the past tens of thousands of years.Shocked by what would transpire, Shen Shi decided that he would first trade for a galactic warship.As such, a warship from outer space landed on Earth, stirring up terror among all mankind.The Earth entered the Galactic Era earlier than expected.

Chen Yan travels between worlds, ending up becoming an honorable prince in a medieval fantasy world. Yet this world was not quite as simple as he thought. Witches with magical powers abound, and fearsome wars between churches and kingdoms rage throughout the land.

Roland, a prince regarded as hopeless by his own father and assigned to the worst fief, spends his time developing a poor and backward town into a strong and modern city, while fighting against his siblings for the throne and absolute control over the kingdom. Join Roland as he befriends and allies with witches and, through fighting and even farming, pushes back invaders coming from the realm of evil.

- Description from Novelupdates