Past World Realm

The book contains basic knowledge of arithmetic, but you don't need to know it to understand it. (No heroine + micro-folklore + micro-system) Unknown worlds are waiting for this passerby again. He will collect stories, waiting for rebirth and death this time. When eleven selves ask you at the same time, "What would you do if it was sunny tomorrow?" Guanshan: "You don't need to think about this kind of thing. I can get the answer just by sleeping."