For someone who just learned to walk that day, Mystic moves quite quickly towards the stream. Arisu flops down with him, crossing her legs under her for a little bit. She watches in amazement as previously smooth skin turns to scales, and little almost see through webbing stretch between his toes. She lets go of his hand in order to take her shoes off, pinning her yukuta at her knees. She slips both feet into the stream, letting a small gasp loose at how chilly it is.