|Manga Debut||Chapter 1|
|Anime Debut||Episode 1|
|Japanese Voice||Sumire Morohashi|
Yui is a young girl around the age of 5-6 with short brown hair and red eyes. She wears a short pink-red dress with yellow cuffs, the collar area on her dress also has a yellow trim with frilled edges.
Yui is a very shy child, though she usually does not display this in the company of loved ones.
Rin Okumura first sees her with Fujimoto Shirō. Later on, he sees her chasing a scarf outside the supermarket lot in which he works in, and, to his surprise, he witnesses a Demon for the first time. After chasing the monkey-like creature into the store, Rin saves Yui's life, but loses his job. Her father, who is upset with her, takes to Rin's home to apologize for making Rin lose his job and says that she always gets into trouble. He later defends her when her father argues that she has an "overactive imagination". Father Fujimoto stops him and gives Yui a four-leaf-clover in a bottle to wear. She thanks him and says goodbye.
Powers & Abilities Edit
Yui has the power to see Demons as some Demons also seemingly "bullied" her.