Blessed by Death: An Archmage's Second Life [OP MC, LitRPG]

Levi was once the servant of Death itself. For years, he fulfilled his duties well, eliminating arcane threats to the world. Sadly, his final task held a terrible cost. Burdened by his actions, he retired to a life of solitude, wanting to live out the rest of his days in peace. But one day Death returns – not to reap his soul, but to offer a blessing. The chance to reincarnate into another world, one where no one knows his name. Levi accepts. Though, he doesn't expect to awaken in the body of a failure: a disgraced noble son, disinherited as heir and on the verge of expulsion from the Institute of Ascension. It seems Death decided to leave some things out... He's perfectly fine with that, though. Let the nobles sneer. Levi was gifted a whole new life, and this time, he intends to live it as an adventure. A younger sister who hates him? He'll just have to become the best older brother one can be. A prodigious Sword Saint who's forced to pair up with him for the Ascension Trials? He'll show her the relentless magic of an archmage. An impending cataclysmic threat to the world? Please. That's just another Tuesday. This world better prepare, because a new player just entered the field, and he's playing for keeps. Now, if only he can figure out how to level up past level 14... --- Updates MWF --- This story was inspired by many I love, including: Sousou no Frieren, Vinland Saga, Fullmetal Alchemist: Brotherhood, Omniscient Reader's Viewpoint, and Jujutsu Kaisen.  I had a lot of fun writing this story, and I hope you'll have a lot of fun reading it as well. Thanks for reading!