A country girl from Akita Prefecture. A second-year student at Amamiya Girls' Academy. Her family home is in Akita, consisting of her parents, a middle school sister, a younger brother, and twin younger sisters. She has a sincere, caring, big-sisterly personality. She is terrible with technology. She likes Neo.

The only daughter of the Chairperson of Amamiya Girls' Academy and a member of the 'Amamiya Concern,' the family that manages the school. Her mother entrusted her with the management of 'Hedgehog' as part of her 'successor training.' She is the dorm head and manager of Hedgehog. She is in the same grade as Meiko. She has a gentle personality. Having grown up as a wealthy daughter, she is generous but lacks a sense of money.

Meiko's classmate. Lazy and idle, she often spends time in Hedgehog wearing a unique outfit—a dotera (padded coat) on top because she gets cold easily, and just underwear on the bottom because her lower body gets hot. She streams videos on YouTube under the name 'Marika Beltree.' Her family is a lineage of flower arrangers, but she has no talent for it; flowers wither the moment she tries to arrange them.

Meiko's classmate. She is so short she could be mistaken for an elementary schooler. An aspiring pro gamer and heavy user, she spends day and night immersed in games. She modifies the store's PCs to be suitable for gaming. Her usual way of speaking is plain. She has a cute appearance and a pure personality.

An employee working part-time at the cat cafe on the first floor of the same building as Hedgehog. She attends a different school and is a first-year high schooler. She views Hedgehog as a competitor and treats them as rivals. She loves cats and has a cat-like tsundere temperament.

A woman who drifted into Hedgehog and settled there because she liked it. Her main job is an antique appraiser. She loves history and has such an excessive admiration for samurai that she often speaks like one.

Rie's mother. The Chairperson of Amamiya Girls' Academy and the head of the Amamiya Concern. She works actively all over the world and only occasionally returns to Japan. She has an even better figure than her daughter and often wears clothes that reveal her cleavage.