In JJK With Naruto Powers - Chapter 90: Unknown Interference

The well-known and recognized throughout the Stern continent, strong and mighty, as well as the unique Wizard of magic cures, the most outstanding genius of the whole continent, Jason got into the flow of time, back in the uncivilized era during the first failed experiment, 3000 years ago. This was the period when the magic healers didn’t exist. How will Jason apply his knowledge in this backward era, wherever he reach the peak of glory?

- Description from Novelupdates

[ Loki, The God of Mischief, Jest, and Woe, is amused. ][ The Goddess of Fate and Luck is annoyed. ][ You are the cause and center of two gods fighting. ]Ethan Cross, a brilliant doctor in a futuristic Earth, was devastated when he realized that his entire life—and the life of the woman he loved—was nothing more than a source of amusement for a mischievous god.But when another god, the Goddess of Fate and Luck, intervened on his behalf, Ethan found himself at the center of a divine battle, gaining a dangerous but powerful gift.[ You’ve awakened the SSS-RANKED SKILL: Fate Breaker! ][ You’ve awakened a system: The Supreme Fate Breaker System. ]For a fleeting moment, hope returned. Ethan was offered a chance to save Claire, the woman he couldn’t bear to lose.[ You’ve been granted God-Level Authority for three seconds. ][ Do you wish to rewind Claire’s soul trajectory?]“Yes!”But fate had other plans.[ Bug detected. ][ Message included with bug. ][ “It’s from me, your favorite god—Loki, the God of Mischief.” ][ 1-second system override has been taken by the God of Mischief. ][ Your soul has been sent to an alternate universe. ]Now thrust into a world of magic and monsters, where gods toy with mortal lives, Ethan must adapt or perish.

Within the world of Arcadia, there exists an eccentric restaurant. The restaurant causes countless apex Mages to set aside their arrogance and pride, just to feast upon its delicacies. What did you say? You want to abduct the Chef? Could it be that you also want to force him to be your personal Chef? Are you an idiot? You would first have to get through a legion of men and women whose stomachs and bodies were thoroughly satisfied. Not to mention, the restaurant is guarded by a Divine Fox who killed a Mana God Realm Mage with a casual whip of her tail. What, a Divine Fox isn’t strong enough to scare you? Then, how about a group of Yanderes?

Rainer, an amateur arcanist and college student, sought to create a new spell far surpassing the magic of the few he inherited from his grandfather. Yet the interference of an unknown event during the casting of his spell led him to be thrown through space and time.