The supporting character's harem is very normal - Chapter 156 New skill - Charring Field

The world’s top level hacker, Shi Lei; due to him hacking the world’s top military powers during a joint exercise and attempting to steal information from them, ultimately leads him to get sold out by his own organization. This act eventually caused his own death by a missile bombardment.

God was playing a joke on him and allowed him to return back to six years ago, the autumn season of when he was still at his university. Being given another chance, plus the fact that he retained his ability as one of the best in hacking technology, Shi Lei decided to change his life! During his previous life, he was only an assassin in the dark. Although such an existence made people afraid of him, he would have to always hide within the shadows. In his new life, not only does he want to be an assassin in the dark, he also wants to stand openly in the middle of the world stage. Creating a world-class super enterprise, he will single handy change the whole world!

- Description from Novelupdates

Zhao Rong boasts super medical and martial skills, yet he keeps a low profile as an ordinary college student. When he gets his first part-time job, which requires him to pursue a school beauty whose boyfriend is a killer, Zhao knows his peaceful life ends.

Has it ever crossed your mind? There are monsters from ancient mythology lurking within brightly lit metropolises.Has it ever crossed your mind? There are gods watching over us on the moon over our heads.Has it ever crossed your mind? There are transcendent humans roaming the streets in bustling cities as gods’ apostles.Within human societies, there hides countless supernatural beings lurking.The ancient gods reside in Forbidden Zones untouched by humans.Archangel Michael, the Underworld King — Hades, the God of the Sea — PoseidonBut, where did the Chinese deities go?In a mortal world, all “divinities” have to be purged.

She became the supporting character ‘The First Empress’ in the webtoon . This is Empress Livia, who died young after being shunned by her emperor due to her timid personality and incompetence. Her problem is that I woke up at her funeral in Livia looking ‘just like’ her. Everyone praises me as the ‘resurrected empress.’ But only the emperor knows. That I am not the real Livia. “The crime of desecrating the empress’ coffin. She deserves the death penalty.” She wants to kill me. She offered him her deal. Just to live. “your majesty. I am a very useful person. “Please use me.” Let’s just hold on for one year. Although her husband is so so so so scared! The real heroine and ‘second empress’ will appear. Then I can leave the palace in peace. * After many twists and turns, the time was ripe. I told her husband. “As promised, please divorce me.” My husband stared at me. And he hugged me quietly and said, “no way.” “yes?” “Now what? “I can never let you go.” … Isn’t this it? Is it because the empress worked too hard? You want a divorce without obsession? No, I have to divorce?