MTL - My Mysterious Doctor and Blessed Little Wife Is Such a Tease - Chapter 21 Yin evil spirit

I was reincarnated into another world, and I’ve brought the Horadric Cube from Diablo II with me.
Being a knight is cool and all, but being a wizard is pretty neat as well.
So, which one will it be?

- Description from Novelupdates

Zephyr Ashbourne has been a mage for two months. Following one eventful night where he accidentally made a pact with a werewolf deity, he's left with the ability to use magic - much to the dismay of his vampire ex-girlfriend who'd been seeking magic for herself. Now Zephyr is attending a small and selective university for mages half way across the world, the Midnight Court. Though quickly, he learns this new power comes with new problems. His ex-girlfriend, for one, wasn't thrilled when he skipped town without a word. And too, his new dueling partner, Aries de la Fel, seems to find new ways to push his buttons on the daily.A novelization of a playthrough of Covens of Midnight - a slice-of-life, magic school, enemies-to-lovers RPG.

[Infinite Regression Genre] In any fantasy novel, regression is a guaranteed cheat key!What if it’s the ability of [Infinite Regression]?There’d be no need to worry about any bad endings. After all, the protagonist would eventually reach a happy ending.“Cheat key, my foot.”I tried it myself just to find out otherwise.The myths of regressors’ success depicted in all those novels are actually fake…It was all just vile propaganda!“This run is doomed too.”This is not a story of success; it’s a tale on the aftermath of failures.Thus begins the heartfelt documentary of a man with 1183 runs of experience!

He, since childhood, had followed the Foreigner to practice the Defying Heaven Art, entering the most secretive special forces and becoming a fearsome assassin that made others tremble at the mere mention of his name. After a single failure, he took early retirement, but he ended up as the personal bodyguard for a rich heiress, a school beauty. Accidentally provoking some mysterious Cultivators, he gradually unveiled a hidden world of Cultivation beyond the mortal realm...