西部 由紀乃

Workplace: PEARLs
Favorite animals: Saiyuki Revolution
Hobby: Birds of prey (especially owls). She keeps a Ural owl named "Marimo."

The Chief of PEARLs. She is the senpai of Kazuki and Miwa from their high school days, and the kouhai of Sarah.

She is in love with Kazuki, but due to her personality, she is unable to express her feelings. While she is fundamentally tsundere, she is particularly harsh toward the protagonist.