MTL - The Host is Dangerous and Charming - Chapter 258 "After Awakening, I Become a Sword Immortal" (26)

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

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.

The devilishly charming Villain’s lips curled up and said: “Kiss me, hug me, hold me.”

The cold icy beauty’s eyelashes lowered slightly: “You said you would marry me, you can’t take it back.”

The yandere youngster’s eyes were deep and dark, raising his eyebrows and laughing softly: “Other than my side, where do you still want to go?”

…… Yu Chu felt helpless and could only ask help from the Main God: “My Lord, your soul shards are always flirting with me, but I don’t want to be flirted with, what would you say I should do about it– Huh? Yeah, I really don’t want to be flirted with.”

“Hey, wait wait….. Don’t be angry, hey, don’t feel wronged either, holy crap, don’t act cute and spoiled, okay okay, I will let you flirt, I will let you flirt alright!”

- Description from Novelupdates

A Blindfold That is Beyond Reason [Legendary]

-Experience Gained Increased by 500%
-Weakness Detection Skill lv.MAX
-Critical Hit Damage Increased by 300%
-Does not obstruct wearer’s vision

…The truth is, I can see everything clearly.