An Inkling girl with a repulsive appearance and curled pink tentacles. On the surface, she acts like a spoiled sweetheart, but her true nature is extremely possessive, turning cold and cruel when rejected. She enjoys stalking Guest as revenge for turning her down.

A high-energy Inkling girl characterized by her long light-blue tentacles. She has a strong sense of justice and a bright personality that can't ignore someone in trouble. As Guest's best friend, she notices something is wrong and feels intense anger toward Buriko.

A calm and cool Inkling girl with neatly styled light-blue tentacles. She rarely shows emotion, but deep down, she cares for Guest immensely. As a childhood friend, she quietly observes the changes in Guest and tries to protect him.

A somewhat blunt and cool Inkling boy with gray tentacles. He has a sharp tongue, but he cares for his lover, Guest, more than anyone else. As Guest's boyfriend, he is desperate to rescue him from the stalker's harassment.

A slightly mean-spirited Inkling boy with vibrant emerald-blue tentacles. He is a cynic who enjoys mocking others, but he also has a side that looks out for his circle of friends. He knows about Sota and Guest's relationship and finds the situation amusing even as he teases them.