The game centers on Koishi exploring a cave that manifests the forgotten trauma of Gensokyo's inhabitants.
Developed by , the game is often distributed through platforms like Booth and is intended for adult audiences (18+), as losing battles triggers specific "defeat" scenes. It is a fan-work and not an official part of the Touhou Project series created by ZUN. Koishi Komeiji's defeat! Cave Adventure | 04 (Ending) Koishi Komeiji-s defeat- Cave Adventure -v1.0.4...