Song Che and Cheng Mingsheng were incompatible rivals. They both died in an operation to compete for new energy sources.
When he woke up again, Song Che found that he was safe and sound, but Cheng Mingsheng had turned into a translucent ghost, following him hauntingly.
What's even weirder is that Cheng Mingsheng's ghost state seems to have some strange attraction to Song Che, and he will make various "astringent" actions whenever he disagrees with her.
Intention: Love yourself