Kamaseinu kara Hajimeru Tenka Touitsu: Jinrui Saikouhou no Last Boss wo Enjite Gensaku Break

Arrogant, charismatic, and untouchable—what more could you possibly ask for from a villain? Zil was the epitome of a final boss, reigning supreme throughout part one of the anime Ragnarök: Twilight of the Gods. However, in a cruel yet hackneyed twist, he was reduced to fodder and insta-killed to make way for the next big baddie's grand entrance. It's far from the type of fictional character you'd want to randomly wake up as, but that's the sad reality our protagonist finds himself in after falling asleep in front of his TV. Not one to throw in the towel so easily, he swears to defy his fate even if it means facing the gods! But breaking canon is easier said than done. First, he must build up his strength and his forces while perfectly maintaining Zil's imposing facade and... Uh, hang on. Why is everyone suddenly worshipping him as a god? Oh well, as long as it boosts his chances of survival!

(Source: J-Novel Club)