Dream from Which I Can't Wake Up

After an accidental electric shock, the protagonist became a living dead. In a comatose state, he had a dream of traveling through time and space. The protagonist in the dream has a wife out of nowhere, but his family has only a dilapidated thatched hut. The protagonist upgrades step by step, and finally plays in officialdom and shopping malls. On the occasion of success, he meets the jealous emperor, and on the occasion of the protagonist's death, he kills his wife and children... The protagonist who was unconscious in real life wakes up. Some time passed. He meets the girl in his dream. The world of mortals comes and goes as a dream. I am a newbie, my writing is not good, maybe the storyline is not good, please give me some advice and please bear with me. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.