The supporting character's harem is very normal - Chapter 419 First Mission

A high-ranking officer in the Marines and a master of both Western and Chinese medicine, Feng Yu Heng is transmigrated with a duang sound to the Da Shun Dynasty.

“Was trying to forget my past and live a peaceful life… a mistake?”His twentieth birthday was supposed to be a celebration, not his final moments—bleeding out on a bed, betrayed, and left to die.'Taking the life of a ‘good’ person makes you a murderer, but taking the life of a ‘bad’ one makes you a savior… Why?'As death embraced him, he whispered his final words—“The world’s kindness, right till the end..”…Only to wake up in an unfamiliar body.“Wait… I’m Noir Ravenlock?”A doomed heir, born to rule the world yet bound to a fate engraved with blood.In a world where morality shapes strength, survival demands more than just power—it demands understanding.And Noir, a man or perhaps a demon who once saw the world through twisted eyes, may just see something no one else can.

With Ye Chen, who inherited the devil, reborn the Phoenix continent, invincible, there will be any unknown secrets waiting to be solved here.
   The “City Revival Master” has been completed, and my brothers support it ~~

- Description from ~

Young genius Ren Zhong, suffering from a terminal illness, chooses the human cryonics project. Upon awakening, he finds himself in a desolate wilderness, beneath a gigantic blue sun and a duo of silver-white moons. On this unfamiliar planet, relying on the resurrection to rewind time and accumulate experience, Ren Zhong is determined to become a warrior. After experiencing betrayal, being wanted, and judged, he resolves to rebel against this unjust world and establish a new world order through war.Compress infinite time into a moment; anything can happen.Rising from insignificance, walking the seams of time, reversing billions of years of enslavement.This is the story of an immortal man and his comrades breaking the shackles of fate.