Versatile Mage : Chaos of Time

This world is overrun by demons, but Xianyu, who had latched onto a powerful ally early on, decided to slack off once he reached a high rank, believing that the taller ones would hold up the sky if it fell. However,

...How did I become a super-level?

...How did I forbid a spell?

...Why did I get on the roof?

…How could I…

Male protagonist: Xianyu (a lazy bum???) (Not a time traveler)

Innate Talent: Chaos of Time

(Please point out any typos (?ò?ó?))

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