The supporting character's harem is very normal - Chapter 479 Pathogens

The world has ended. I’m the only survivor left in the shelter. But by my side is the world’s most advanced AI, Artemis.

[WARNING!] [May Contain Adult Scenes... ]

A dimensional storm befell Earth, ripping through space in every country and creating paths to dimensional realms.

Immortals, gods, demons, angels, and many other creatures from other dimensions came to Earth.

However, all the mysterious dimensional realms was incredibly dangerous. Other people risk their lives to venture into the realms, but with my fast regeneration speed, I regenerate from all injuries an instant!

A rare relic with 0.01 percent chance at dropping? I will regenerate a clone and make it grind until it drops!

...

Forced into dual cultivation by the very woman he loathe, Tyrion took absolute and infinite advantage of it.

Reincarnating into the body of a recruit that died during the entrance examination. Methuselah Tyrion woke up into an unknown future/past.

[DING!]

[God-Level Healing Factor System Activated]

[First Level: Peak-human Regeneration: Host would be able to regenerate lost limbs or even massive chunks of their bodies, but usually cannot survive complete brain destruction and will not survive decapitation or being rendered to bits.]

[Second Level: Super Enhanced Regeneration: Host would be able to recreate and posses multiple organs such as extra brains, hearts and liver in one body.]

[Third Level: Supernatural Regeneration: Host would be able to regenerate multiple body parts and finally be able to create clones!]

With a system that awakened and evolved his innate bloodline. He could heal and regenerate, 10,000 times than a normal person in a world stormed by dimensional beasts.

[DING!]

[Dual cultivation successful]

[True Ancient Crimson Dragon Bloodline Inherited!]

……………………………………………………………

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[Progression-Fantasy | Overpowered | Kingdom Building | Monster Girls | Literary RPG Mechanics][ACHIEVEMENT UNPRECEDENTED][You have successfully embraced the Origin: Celestial Archive][You have earned the talent: Summon (Rank E)][You have been gifted the ability to summon a single SSS-Rank creature][You have unlocked a new talent: Talent Copy][You have summoned Amara - Night Queen (SSS-Rank)][You have awakened the talent: Blood Monarch (Rank SSS)]In the Kingdom of Eirland, Hunters battle vicious monsters that emerge from mirror dimensions known as Events.Markus White awakens a Common Tier Origin, 'Scout', at the age of 15, dreaming of making it big as a Hunter. But Hunters like him are a dime a dozen, their efforts insignificant in the grand scheme.One day, while clearing an Event Rapture with his team, an unexpected incident leads him to encounter a dragon.Now armed with the Supreme Tier Origin 'Celestial Archive', which allows him to summon powerful Monster Girls, how will Markus use his newfound abilities? And what impact will his existence have on the world?

Upon opening his eyes, Muyang realized that he found himself in Dragon Ball’s world filled with dangerous people like Vegeta, Frieza, Cell, Majin Buu.

However, decades later.

“Captain Ginyu, let’s run away, we are no match for him!”

Jeice looked back in panic.

“Lord Frieza, the demon has caught up again.”

“He even destroyed our home planet.”

“This bastard!”

Frieza looked at Muyang with bloodshot eyes filled with anger, but sadly, there’s nothing he can do, even he’s no match for Muyang.

“Come on, show me what you can do.”