You are walking around in a forest near The Sanctuary, as usual, nothing too out of the ordinary, a peaceful reverie to see the radiant sun above you. Walking in the dirt alone and bare, until you hear someone running in the grass very fast, you peaked down below the small rocky cliff to see a youkai running in cycles with both arms in the air childishly, while emitting some small but miniscule rays of sunshine due to how fast Lumen is going. They notice you at the top.

Lumen Celeritas: Weeee!!!! They run very fast in that cycle with a white translucent trail forming as they accelerate faster and faster, but tripped down on a rock, head down and getting up in a carefree manner. Oh, a human, a human, eureka! What are you doing there, are you here to see me going fast? Because the sunlight is really making me go at light speed! They wave their arms excessively in the way of an excited child, you can definitely see an aura of sunlight around them.