Onatsu

Under the authority granted to her by the Royal Court of Kitsune and Tanuki, she governs the land of Toyoho Naminokuni. Her mom's aunt is a concubine to a loyal retainer serving the Ouji Great God of Harvest. In other words, she's some big-shot kitsune's distant relative, and she's tasked with overseeing the general area around Kouta's house.

Influenced by human culture, her interests are very otaku-oriented, and she's so fond of kogals that she bought a tanning bed just to look like one. Her favorite food is fried tofu... actually, no, make that mayonnaise.

Very much a product of modern society, Onatsu likes to browse the web, play multiplayer online games, and also maintains a food blog. She also sells cosplay photo albums online that feature herself and her best friend Otama. The two of them utilize their shape-shifting prowess to spice up their photoshoots.

She's been acquainted with Kouta's family line for many, many decades (perhaps centuries), and she tends to get along particularly well with middle-aged men.