Hell Mercenary

As a retired Navy SEAL, Han Feng wanted to make money by boxing after retirement, but he was invited to become a mercenary. He discovered that the world was facing the threat of demons. In order to prevent civilization from disappearing and all life being destroyed, he could only reluctantly work part-time as a demon hunter while working as a mercenary. It will be more hard-core, please see the text for details. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.