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God: "I can grant you a wish." Me: "I want to go to the second dimension!" God: "You are hopeless." Me: "Stop talking nonsense, can you." God: "Is it a two-dimensional world? Which world do you choose to be in?" Me: "... This is a very serious issue and it's very difficult to choose." God: "Hurry up, I'm very busy, and I don't want you to waste my time anymore." Me: "Children only make choices, I want them all!" God: "The consequences may be serious, forget it, just go with peace of mind. From a very hasty start, my two-dimensional adventure began. (This book is considered a comprehensive comic....)

The rivers and lakes were twisted, and various families formed alliances and gradually divided into two major factions. People wandering in the rivers and lakes write their own stories of the rivers and lakes.