Xiao Tian is an otaku who only knows how to say "good morning and good night" to class girls, until he was struck by lightning and awakened the ability to dream about the murderer's perspective. A serial murder case breaks out on campus. He goes to bed to solve the case and wakes up to harvest his fangirls. Human meat buns eaten in the cafeteria? He dreamed of the sound of chopping; the case of the missing goddess? From the murderer's perspective, there was actually the class beauty's underwear. On the way to chase the murderer, the drug lord's bullets, the ogre's kitchen knife, and Professor Sven's dissecting table take turns waiting on him. When he finally identified the murderer of Ban Hua's disappearance - the last unsent message on his phone was sent to him: "Save me."