Universe Infinite Canteen - Chapter 222 Very Iron but Not Steel

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

An innocent boy from Earth who was sheltered all his life finds himself reincarnated into a world full of magic, a world as beautiful as it is horrifying. Fate brings him together with his new loving mother and sister, and they face the trials together as a family. Follow their incredible story as they struggle to survive and create a better life for themselves.

Chen Daoxuan stumbled upon an extraordinary system after crossing into a new realm. Whenever he took an apprentice under his wing, unimaginable rewards awaited him, and the critical hits from his apprentices would return ten thousandfold.Puzzled, Chen Daoxuan wondered, “Why don’t my disciples seem to regard me the same way?”The eldest disciple, the Demon Empress, declared with unwavering loyalty, As long as the master gives an order, the disciple is willing to sacrifice everything in the world for the master.”Second Disciple, Saintess: “What is the highest state of Master?”Third Disciple, Sword Immortal: “Damn it, the world says I am the number one swordsman genius in the world, but why am I not even ten thousandth as good as my master?”As word of Chen Daoxuan’s abilities spreads, the reverence towards him grows.Many Holy Places: “If we are a holy place, then his power is like a heavenly existence!”All Immortals in the Immortal World: “His strength is not comparable to that of our fairyland, and he is probably already the supreme saint!”Saint Supreme: “Don’t get involved with me, I don’t want to face that existence either!”Embark on a thrilling journey as Chen Daoxuan grapples with the consequences of his newfound powers and the complexities of his relationships with his devoted disciples. Unravel the mysteries of the system that granted him his strength, and discover the true extent of his abilities in a world where unimaginable forces collide.Prepare to be enthralled by this captivating tale of power, loyalty, and otherworldly encounters. Witness the rise of an enigmatic master whose might echoes through the realms. Brace yourself for an epic adventure that will leave you yearning for more!

A surgeon accidentally got the blessings of a system, shocked the medical industry, and rejuvenated countless people.

- Description from Novelupdates