MTL - I Can Level Up By Staying Idle - Chapter 108 Involution index, 10,000!

One moment I was a grown man—an engineer with a decent job and way too many spreadsheets. The next? I woke up in a kid’s bed, staring at glow-in-the-dark stars on the ceiling… in Malibu.Turns out, I’m Jake Harper now. Yeah, that Jake Harper.“Wait… I had a bitchy mom and a simp dad?”Yeah, the behaviors don’t make sense — just roll with itYeah, the years don’t match — just roll with itpatreon.com/MHJunior(I am not the owner of any show, credits to their respective creators)

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Jhin, a professional gamer, finds himself alone at the end of the world, fighting hell. He soon discovers that this is humanity's hell, but for him, it's a blessing from heaven.------------------------------------------------------------The story revolves around the Apocalypse. A classic story for fans of the game system and leveling up. If you're a fan of Solo Leveling, you'll love this story.

[Trait: Protagonist's Desire][Acquire one trait possessed by the protagonist you reincarnate into.]A killer physique, a hypnosis app, becoming a shota...The protagonist has gained the ability to reincarnate into characters from adult games and make their traits his own. NO NTRRomance | Fantasy | Harem | Multiverse | SMUT | R18 | Reincarnation | NTL