The supporting character's harem is very normal - Chapter 192 Worshipping Energy

What would you do when you wake up in another world with an Analysis system backing you up?

Sato Inugami fell victim to an explosion in his apartment which led to him reincarnating after his death.

With the help of his Analysis Helix system which helps him store skills and knowledge about the world of fantasies.

From ruling over elves to build an entire nations with the help of his system, beautiful maidens and subordinates, Sato soon found himself being formidable.

With his success soon known around kingdoms that posed to be a threat to him as he climbs up the rank.

Sato must now protect his people from Demons, Kings, and even gods as he rose amongst the ranks to become the strongest Ruler.

With the memory of a Level 200, Tier 3 Mage. Lu Yang returned back to his life ten years ago. Destiny made a joke with him. He was betrayed and everything he worked for was taken away. He had to get it back.

The game’s money making methods, dungeon strategy, legendary quest, equipment source, secret blueprints, combat skills. He knows all. See how a reborn player with his brothers swept the country, burned the world and created the legend of The Fire God!

- Description from Novelupdates

Extras die every day in various ways in the game [Demon King’s Palace 3].

He was an extra when he reincarnated into the game.

I’ll never die. Never.

“Let’s get started.”

Evan had come to a conclusion. He tapped his cheeks as a way of signaling to himself that he had made up his mind.

He would become a character who never dies.

An unexpected journey took a group of university students into a secret room from which, upon returning, they began to disappear one by one. In order to unravel the mystery, they joined forces, traversing heaven and earth, diving deep into seas, crossing the farthest corners of the world, and even daring to time travel, only to find that behind each puzzle lay yet another.