Plenilune Ronin

Historical Background
The word "plenilune" (Latin plenilunium; plenus, "full" + luna, "the moon") is an older term to refer to a full moon. A ronin was a masterless samurai in feudal Japan. The usage of ronin is somewhat odd as Plenilune Ronins are ninjas, not samurai, however the reference to a full moon is appropriate given the covert nature of ninjas.