Level-Up Apocalypse: Surviving With The Assimilation System - Chapter 250: From Nothing, Everything

In 1177 Jerusalem, Ethan Caldwell awakens as the leper king Baldwin IV, blending modern ingenuity with medieval valor. Introducing hwachas, windmills, and a revolutionary crossbow, he leads a crusade to conquer the Sinai, outwitting Saladin and transforming the Crusader states.

Traversing into another world, Zhang Xuan finds himself becoming an honorable teacher.

Along with his transcension, a mysterious library appears in his mind.

As long as it is something he has seen, regardless of whether it is a human or an object, a book on its weaknesses will be automatically compiled in the library.

Thus, he becomes formidable.

“Emperor Zhuoyang, why do you detest wearing your underwear so much? As an emperor, can’t you pay a little more attention to your image?”

“Fairy Linglong, you can always look for me if you find yourself unable to sleep at night. I am skilled in lullabies!”

“And you, Demon Lord Qiankun! Can you cut down on the garlic? Are you trying to kill me with that stench?”

This is an incredible story about teachers and students, grooming and guiding the greatest experts in the world!

- Description from Novelupdates

When Logan and his classmates are suddenly transported to a world teetering on the brink of destruction, they find themselves thrust into a desperate battle against a relentless demon invasion. In this new realm of magic and peril, each student discovers unique powers to aid humanity's fight for survival. However, Logan's ability to tame creatures is deemed the weakest among his peers, earning him scorn and ridicule.Despite the doubts of those around him, Logan's determination never wavers. As he bonds with mystical beasts and uncovers their hidden strengths, he begins to realize that his power might be the key to turning the tide of war. With every creature he tames, Logan grows stronger, proving that true strength lies not in raw power but in the heart and courage to stand against overwhelming odds.Logan's journey is not just about battling demons; it's also a personal struggle against his own loner personality. Having always been an outsider, Logan must learn to trust and connect with others, both human and beast. His solitary nature is challenged as he forms unlikely friendships and alliances, discovering that unity and cooperation are essential in the fight for survival.