Zhang Wei was born as the only child of the Wei family, so he was spoiled. Due to this, he became arrogant and complacent. He lived a life of debauchery, and this was used against him, and he lost his family, wealth and influence, and became a beggar. Tired of life, he committed suicide but was offered a second chance at life as a demon. but it comes with a catch, and that is EXTERMINATING HUMANITY!!!!