What will you do when the last sky comes? The story follows a group of Tokyo high school students through a mystery revolving around a prophecy about the end of the world and they try to find their own "Wonderful Everyday".

Wonderful Everyday: Down the Rabbit-Hole is a visual novel with multiple routes which develops a story based on a few concepts: "the sky and the world", "the beginning and the end", "literature and science", "savior and hero", "brother and sister".