Be the Hardest Working Demon Cultivator! - Chapter 526 - 285, I left a back door for you

Kailen Darkhaven's world crumbled when his parents died two years ago in a beast tide invasion in New York City. Alongside slipping into depression that caused his grades in school to drop exponentially, he failed to become an awakened on his sixteenth birthday. Losing his consciousness due to his frail body and a life of poverty one evening in an alleyway on his 17th birthday, he thought he would die, only to wake up in the same alleyway to a shocking holographic screen before him''Fusion complete, you have obtained a time dilation artifact.. You are too weak, you will be taken into the pocket world of the time dilation artifact to train in 3...2...1....''Follow Kailen's journey, as he embarks on a journey with this cheat item, to stand at the Zenith of of the Universe.This novel is participating in Webnovel Spirity Awards 2025.Disclaimer : This is purely a work of fiction.The setting, including any imitation of real names, places ,people or events is purely coincidental .

July, 1946. The existence of an alternate world was confirmed.

It was supposed to be a new world for mankind.

However, the enormous cost, the annihilation of the advance troops, and fierce public opposition led to the signing of a non-aggression treaty.

Mankind turned their eyes towards space.

Half a century later.

A certain company formed a team in order to explore the alternate world’s dungeon.

Five professionals and three artificial intelligences. And one reserve member.

With modern weapons and technology, the adventure was expected to be easy.

However, the ones who had arrived in the alternate world were a defective artificial intelligence and a non-professional.

Through trial and error, they lived, ate, and fought. And, they explored the dungeon.

Miguel transmigrated into the Wild Beast World in the body of a useless teen with the same name as himself after he was betrayed by his disciple, the Harem Emperor, for a knowledge and universal secret that he recently uncovered.In the Wild Beast World, humans could contract Wild Beasts through their Summoning Grimoire, a mysterious book that fated individuals can awaken at the age of 18.In this world of summons and beasts, Miguel awakened with the Beauty Sign-In System, which allowed him to contract legendary beauties as long as he signed in at a specific location.On his first sign-in, he received the Holy Daughter of the Red Family, the Fiery Empress of Legend.Using the Wild Beast World and the Sign-in System as a starting point, Miguel swore to return to the Immortal Cultivation World and settle scores with the Harem Emperor once and for all.Follow Miguel's journey as he reaches for the apex, becoming a legendary figure in all worlds.

This is a time of great powers: The vast Persia, Sparta that is founded by force, Athens with its trade and business, Thebes the rising star, The ambitious Macedonia, The twin heroes of the Western Mediterranean, The rising Rome and so on.

This is an era of brilliant stars: Agesilaus II – the last king of Sparta, Epaminondas – the Rising General of Thebes, Philip II – the founder of Macedonian hegemon, Dionysius – the tyrant of Syracuse, Camillus – the Roman dictator and savior…

This is an era of contention among a hundred schools of thought: Plato – the great philosopher, Antisthenes – founder of cynicism, Pythagoras – school of number, Democritus – the encyclopedia scholar, Hippocrates – the father of western medicine, Aristophanes – the great dramatist…

What will the hero bring to the world when he comes to this age as a humble mercenary through rebirth?

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