Superman in Solo Leveling [Completed]

Calvin Booker was a war veteran, he lived a good life and died happily without any regrets. But when he woke up, he discovered he was in a supernatural world where Monsters that came out of the Gate and awakened humans called Hunters who fight against the Monsters. But that is not the only thing he discovered. He is Superman. |-_-_-_-_-_-_-_-_-_-_-_-_-_-_| This is my second book so please be gentle with me. English is not my Language. Leave some reviews, please. My update schedule will be 3 chapters a week: Monday, Wednesday, Friday Tags: -NoHarem -OverpoweredMC -SlightRomance -SliceOfLife You can visit my Patreon to read 10 advance chapters and if you want to support me. www.patreon.com/SlimeSage [Extra Chapter every 200 power stones.] *Cover is not mine, it belongs to -ArtStation- in Pinterest.* *I only own my OC*