Naruto: The Outsider's Resolve - Chapter 3.3 (092):

An ordinary youth living in the year 2050 in the Western calendar accidentally came to a fantasy world created by the collision of magical elements and supernatural technology at the other end of the dimension…

- Description from novelbuddy

America, 1980. No sooner had Xu Yi transmigrated than he was put on the dissection table; then he gradually came to understand the true nature of this world. “Studying medicine can’t exorcise undead demons; I must become an exorcist!” he resolved silently to himself. On a misty, rain-soaked night. “Miss Evil Spirit over there, the night is cold and damp; be careful not to catch a chill! Come over here and warm yourself by the fire!” Xu Yi said, holding a lighter, as the pale gold flame slowly approached the other. The Evil Spirit shrank back, looking at Xu Yi with fear. “Don’t be afraid, I just want to warm you up...” Xu Yi’s face broke into a warm smile, “by setting you on fire!” Ding dong! Ding dong! “Sign-in at the Land of Fear successful, Resurrection Coin awarded!” “Synthesis pathway requirements met, do you wish to combine the following entries?” Psychic + Scholar + Painter = Psychic Painter! Saintly Offspring + Gunfight Technique + Revolver Mastery = Holy Gunslinger! Undead + Revelation + Holy Nation = God!

Spot was summoned from his comfortable charging pad and familiar floors to a world of magic and intrigue. After the flight of his new patrons, he is left to care for a filthy castle. During his quest to keep this new home clean, he will face demons, foreign armies, and the dreaded stairs.All those who stand before him will be swept away. Those who follow his spotless trail will find enlightenment, purity, and a world on its knees.Follow this wholesome vacuum on his quest to power.

“Obtaining the topmost degree of talent in sword arts in the world requires giving up 72 years of lifespan, which leaves you with only five more years of your life. At the same time, you will never be able to feel love, kinship, and friendship, and you’ll end up leading a lonely life until your death, unable to procreate, or to have any descendants.

“From now onwards, everything related to happiness in the human world shall no longer be of your concern. Are you willing to accept this?”

“Hahahaha, I’m already alone bereft of all support, my hopes dashed to pieces, shouldering only absolutely irreconcilable grudge and hatred, why would I disagree? Why would I not want it? I couldn’t ask for anything better!!”

His sword sweeps across the Divine Continent for seven days and nights, moving 90,000 miles through the starry skies, unhindered.

He slays saints and buddhas in Heaven, slaughters demons and devils in Hell, sweeping away all the grievances in his heart.