Doomsday: I want you to die
System: Do you want to live?
Hao Yunlai: I want to live.
System: Let's do the questions!
Male protagonist: It's really hard to get a wife, you have to study well.
Alias of this book: "Write the right answer to save the world" "You are not qualified to be with me if you don't study well" "You must study hard even before the end of the world"