From the Start, in a Desperate Bind: I Slaughtered the Civilizations of Another World

[Transmigration to Another World + Cultivation and Leveling + Bounty Hunter + A Life Reversed]

His parents died young, and his younger sister is gravely ill in bed. With nowhere left to turn, he stakes everything on a deadly trial and discovers a different world called the Origin Realm, unlike Earth. There, he hunts demons in the city, collects bounties, and brings down the wicked empire of the otherworld...