The supporting character's harem is very normal - Chapter 459 You can do it

Chen Sha came to a world of immortal martial arts and was ordered to take charge of the world’s first sect.

Before his death, the previous chief told him:

“If you don’t become the best in the world for one day, you are not allowed to go down the mountain for one day.”

So he closed himself in painstakingly, crossed the heaven gate in his body, and faced off against the ancient and modern powerhouses…

…

Many years later, Chen Sha recalled the day he went down the mountain,

From the moment he descended the mountain, he was number one in the world.

In the next ten epochs, any gods and demons have returned, immortals and Buddhas have lived in the world, ancient powers and ancient gods have appeared one after another.

No matter how the times change, he has always been No. 1 in the world and has never changed.

- Description from novelbuddy

This is an Isekai styled story, written from the point of view of the protagonist.

Discover the secret of the new, unknown world with Peter, as he sets his first steps in an empty, ruined city. Meet new people from all around the globe. Fight, laugh, and cry.

Our protagonist was a Mexican who died on a flight, when he woke up he found Apollo who reincarnated him as the grandson of Gaius Octavian Turino (Augustus) the first Roman emperor, having a mission in hand to conquer the New World to save the Roman polytheist world and his existence.

When Qiao Moyu awakened, she found herself in a novel world and had become the villainess who was loathed by the President, the story’s male protagonist.

Qiao Moyu, the President’s childhood friend, came to his door whilst holding a baby, but the man said he won’t take any responsibility since the child wasn’t his!

As she stared at her adorable and proud little toddler, Qiao Moyu decided to take this chance to raise her son while having a fresh start in her acting career. As for the other problems, she’ll just take it easy!

However, a few months later ~

President: “You’re not some disgusting mosquito blood, you’re my white moonlight (first love).”

Luo Luo: “Mama, he’s not Baobei’s father. Baobei doesn’t want him.”

A certain Film Emperor: “I want both you and the child.”

Online fans: “Qiao Moyu is ours!”