Mugenri (无現里 Mugenri) is the primary setting of the Len'en Project games. It's unclear of what the region is, but it's suppose to be a forgotten land that is sealed away from the outside world by the Mugenri Barrier. Yabusame Houlen and their acquaintances are spirited away there by the priest Tsurubami Senri, starting their adventures in this strange land.
The world of Mugenri is based on Gensokyo of the Touhou Project , thus having many similarities.
The name "Mugenri" is a wordplay on mugen no en (無限の縁, lit. "limitless relations"), mugen no ri ("illusionary laws"), and Mugenri (无現里, lit. "Unreal Land").
Geography and People
The land of Mugenri was sealed away long ago, so it is not well known in the Outside World. Its culture vaguely resembles that of feudal Japan, with a lot of folktale elements added on.
The region mostly appears to only have human and youkai creatures, with rare exceptions such as Kurohebi (and probably Taira no Fumikado). It has been shown that it has a barrier that separates it from the Outside World. It's also known that humans from the Outside World can be spirited away into Mugenri, as shown in Evanescent Existence. The Senri Shrine is the only shrine in Mugenri.
Little is known about the far past of the world of Mugenri, since more of the characters travelled from far away or were spirited away there. What is known is that the first-generation Shinto priest of the Senri Shrine was the one who created Mugenri, and the second priest of the shrine was the one who introduced the spell card system.
Tsurubami Senri, the current official priest of the Senri Shrine, had tyrannically ruled Mugenri with an iron fist for a long time, oppressing its people and youkai. Because of this, many youkai hide away during the day, fearful of them. Ever since after the events of Evanescent Existence, Tsurubami has not appeared in Mugenri because they are having an holiday in the Outside World, replacing themself with Yabusame Houlen and Tsubakura Enraku to take care of the job of being the youkai exterminators of Mugenri.