The supporting character's harem is very normal - Chapter 13: This is your portion

Orphaned in the old world after taking care of his irresponsible and sick mother for years on end, Kyle finds his life turned upside down.His already dim world turns even gloomier and coupled with his trauma from losing her, Kyle felt like he had lost his purpose in life.Living day by day, akin to a soulless puppet, he struggled to keep his suicidal thoughts in check, all whilst trying to make ends meet as a cabbie.During those dark times, Kyle slowly begins to find solace in the world of music and movies. Even though it had always been there, it truly became something as a bloodline of sorts for him because, individually, both pieces of media, transported him to another world, one where he could feel happy, if even for a fleeting moment.And, as if the universe wanted even more for him, Kyle met some lovely old people, all of whom treated him as the son they never had, making him feel like he had a family after so long.This eventually, helped him let go of his trauma and turned him into the lovely soul he was always meant to be.But as fate would have it, these same people, wanted for Kyle to pursue his dreams because they saw the potential for greatness in him and the wonderous things he could go on to do, even if Kyle himself was oblivious to it.So, in an effort to make his dreams come true, they ended up gifting him a brand new chance, one that Kyle himself would only go on to realize after his untimely death in a fatal car accident.Now awake in the new world, still orphaned but with a brighter perspective on life, Kyle, armed with a System, another gift from his loved ones in the previous world, decides to take the chance to pursue his dreams of being a star, one that he was unable to pursue in his previous life due to his lack of talent.This is the story of a man who will go on to become the most versatile and renowned superstar all over the world... and it starts, just as he takes his first step into the cutthroat world of fame and fortune by registering for the popular singing reality TV competition, 'Rising Voices'.Known to be a fiercely competitive TV show, Kyle will meet with top contestants from around the world, go up against them, level up and become better, and ultimately, battle with them for the number one spot in the show as a dark horse!---

Here, only those with spiritual roots can cultivate while those with mortal roots are destined to stay mortal.

Mo Wuji only has mortal roots, but will he only remain as a mortal?

- Description from Novelupdates

In his past incarnation, Lu Xuan was the youngest Celestial Lord that the universe has ever seen!
An accidental rebirth brought him back to a thousand years before, where the Earth had just begun its spiritual reawakening. When he stepped onto the way of cultivation for a second time, he swore to rewrite all injustices suffered in his past life, and defeat all enemies that dare stand in his way!
Let invincibility be his cultivation and the path he treads. In this life, it is his destiny to be invincible!

The youngest Wiseman of the continent, Chu Tian, has traveled 30,000 years back in time to the age of antiquity due to an accident.

This is a prosperous era. Rare herbs, minerals, treasure relics and monsters can be easily found throughout the land.

However, this is also an undeveloped era. Communications, traffic, martial arts and technology are in its early stage of development. Prosperous cities lack lighting while its citizens are uneducated.

Our decisive MC using his future knowledge creates Magic powered light bulbs, magic powered telephones, magic powered cannons, magic powered computers, artificial intelligence, psyche internet. 30,000 years worth of knowledge allows him to create miracles and shine brightly in this era. Allowing him to conquer the land and sit firmly on the throne of the 10 realms.

- Description from Novelupdates