夕凪 一夏

Likes: Running (moving her body)
Dislikes: Staying on the same spot for a long time

A friend and classmate of Ochiba at Tsukikou. She’s an overly energetic and sociable person. She’s part of the school's track team and enjoys running to the extent that she’ll often take it on herself to practice in her free time by the riverbank under the bridge. She lives in the new district with her older sister Miharu who works as a researcher for the Valhalla Institute.

She awakens as an Elfin because she is worried about her sister's workaholic behavior. However later she loses her rune powers.