It combines elements of puzzle, simulation, and visual novel titles. In it, Haomaru Tachibana, a Christian clergywoman in 1910s Japan, finds herself lost in a forest near a shrine in Kyoto, Japan. There she find Chuuya Shingoh, a student from a local university, who is studying the "Star Seeing Basin", a device of supernatural abilities that can divine and influence key areas in Kyoto through onmyouji. Gameplay consists of experimenting with the creation of celestial bodies and constellations with the "Star-Seeing Basin" in order to complete quests and advance the Visual Novel style story. The methods of creating specific celestial bodies are not spelled out; the game requires players to experiment with the given tools in order to complete in the large catalog of potential celestial objects.
