The supporting character's harem is very normal - Chapter 374 Alec disappears – The Past

Anna a normal girl waiting to have all her dreams come true falls into a deadly trap when she begins to desire someone she shouldn’t. After being shocked to reality of her boyfriends betrayal she dives head first into the flames of sin with the Don of the underworld.
Ren a ruthless cold heartless man lusts for someone he shouldn’t but can’t let go. He just didn“t realize how taboo she was an...

The Descent of the Dragon Tower.A young man refines the nine Dragon Emperors, cultivates the invincible Dragon Body of eternal glory.Slays the emperors of myriad heavens, gods, and demons alike, defying gods and Buddhas.Invincible across nine thousand realms!

When Gao Ge is awake, he finds that he has returned to the earth before aura reappeared. The world will usher in an era of practitioners soon. Various schools of cultivation and families of ancient martial arts will spring up. As a man who is living a second life, Gao Ge will never let go of the chance to grasp the resources, cultivation methods and treasure places first.

In this era, there are many geniuses and I, Gao Ge, shall be the king of them.

- Description from Novelupdates

“Future Occupation…Demon King.”

Sai Akuto enters Constant Magic Academy to be useful to society and to become a top-ranked national magician. However, a horrible prediction is made on his first day. Thanks to this prediction, the class representative girl hates him, a girl with a mysterious power embraces him, a female artificial human is sent by the empire to observe him, and his school life is otherwise thrown into chaos…