In This Life, The Greatest Star In The Universe - Chapter 291:

A series of nine stars occurred here, and various creatures violently mutated, killing the former overlords – humans crazily.

Thermal weapons are no longer humanity’s trump card.

Fortunately, mutations have also occurred in humans.

Human beings will awaken their bloodline at a specific time and gain the inherited power of various ferocious beasts.

And Xu Mo, who obtained the system, was even more outrageous.

He awakened the bloodline of the ten ancient beasts and led mankind to regain its dominance! !

- Description from novelbuddy

Throughout this current life of mine, I will pay no attention to my past lives, nor will I seek future lives. I wish to live vigorously, to pay back debt of gratitude and fulfill duty to avenge, to defeat valiant heroes from all species, and to proudly laugh at all the Gods and Demons of the Six Path of Reincarnation!

- Description from Novelupdates

Ajax was an orphan who survives a massacre along with his friends but unfortunately gets separated from them.

Fortunately, after a turn of events, he successfully gains a system which helps him increase his cultivation, but doesn't know what it is called.

But he knows one thing for sure, this system is very powerful and helpful in taking his revenge.

“Whoever you are, I am gonna find you”, Ajax mumbled himself with a disgruntled expression.

In a world where Summoning of an elemental spirit is done through a dream when they are 15 years old, Ajax with the help of a system and his summoned spirits sets out on a journey to seek revenge against the mastermind behind the massacre.

[5 Spell Books][280 Spells and Rituals][Ressuration Completed[System initializing… Synchronization in progress…][Synchronization Complete][Harem Codex Initiated]Every normal thing in his life took a great turn after he Fucked the goddess of lust.This is what I was born to become 'A Monster.' They will fear me! They will crumble in my presence! My purpose is not to save but to destroy, my legacy will be remember forever...Azrael was once the kingdom’s deadliest weapon, forged in the shadows by the criminal elders and a king who demanded perfection. But when his humanity cracked under their brutal training, they abandoned him to a witch-run asylum, branding him broken and useless. Left to rot in despair, Azrael met his end in the ward—until the witches intervened.Out of pity and defiance, they performed a forbidden ritual, combining 280 spells from five ancient grimoires. Their sacrifice gave Azrael a second chance, transmigrating his soul into a new body.He awakens with a system unlike any other: a reality-bending tool granting him the ability to charm and seduce powerful women, each conquest unlocking new powers and revealing deeper truths about his own existence.In a world where women dominate 75% of the population, Azrael uses his newfound abilities to climb the ranks of society, assembling a loyal and influential harem. But as his strength grows, so do the secrets surrounding his rebirth. Each revelation pulls him closer to uncovering the true nature of the system and the conspiracies that reach far beyond his betrayal. Is he the master of his destiny, or just a pawn in a greater game?-___A/N: Sypnosis not long, but gives all it should give, before you judge, read up to the first 15 chapters and leave a review once done.....See y'all in the book.You want a wise MC? You got it!You want an MC who will turn out not to merciful? You got it!Fast paced story? You got it!Something a little bit new, and out of the ordinary? You got it!Level up of both the MC and Villain and system? You got it![Adventure, Action, R18, Isekai, System, weak to strong, Handsome ML, Beautiful FLs, Demons, Monster Girls, Beasts, Apocalypse: All Check ..]