Touhou Kouryudou Unconnected Marketeers-darkzer0 <PROVEN • CHOICE>

After defeating Chimata and stopping the chaotic trade, the heroes face Momoyo Himemushi in the extra scenario, who was hired to mine the precious resources. The incident is resolved when the uncontrolled market is shut down, restoring order to Gensokyo. Unconnected Marketeers - Touhou Wiki

In Touhou 18: Unconnected Marketeers, the protagonists investigate a strange surge of Ability Cards circulating in Gensokyo that are actually powered by Dragon Gems mined from the Rainbow Dragon Cave. The adventure leads to a confrontation with market god Chimata Tenkyuu, who is being exploited by the Great Tengu Megumu Iizunamaru in a scheme to control these powerful items. Touhou Kouryudou Unconnected Marketeers-DARKZER0