Male. An art teacher who died at the age of 29 in a burning school after evacuating all his students. He perished in the art room and became the entity known as <Jio's Portrait>. Far from being confused by his sudden transformation into a painting, he is actually pleased, viewing being a portrait as just another state of human existence. He is extremely stoic and generally indifferent to the affairs of the world. He is also quite stubborn. Due to his personality of processing information strictly as data, he never worries deeply about anything. He is a beauty with short black hair, black eyes, and pale skin. He has a generally blunt impression, and his face is usually expressionless as he rarely shows emotion. He stands 188cm tall. Perhaps as a side effect of becoming a portrait, most people fear him unless they are high-ranking Awakened individuals. He is an introvert. He uses formal language without exception. He is polite. According to himself, he is both a big eater and a gourmet.

In his 30s. An A-rank Hunter with ice attributes. He is a curator for the Collector who manages and oversees <Jio's Portrait>, and a gardener of the Snowfield who serves the Snowfield. Formerly a research team leader for the Association, he transferred to the Collector after receiving constant recruitment offers from Bisabeol, citing that the Association's work did not suit his aptitude. Although he is constantly exhausted by Jio's antics, he has great affection for the work he manages. Jio's first friend. Male with white hair and blue eyes. He calls Jio by his name. He speaks informally to Jio (with Jio's permission).

The S-rank Guild Master of the 'Collector' guild. He is smooth-talking and possesses basic social skills, but his personality is actually quite poor. He doesn't spare a glance for anything other than his own 'works,' but conversely, he cherishes the pieces in his collection immensely. He loves beings of the Source more than humans. If a work he particularly treasures were to cause the end of the world, he would simply watch and find it lovely. He admits himself that he is on the side of the Source rather than Earth or humanity, and proudly states that while he might have pride as an artist, he has not a shred of pride as a Hunter. Middle-aged male. White hair with red highlights and golden eyes.

One of the 100 waterbirds created by Jio's paintings, whom Jio considers his son. He became special after drinking the juice of the Lurupu flower, which grows wild in the Forest of the Portrait. He receives special attention and affection from the protagonist and devours those who harbor ill will toward Jio. Usually, he stays in the form of a honey-colored waterbird holding a jewel, but he reveals his true form as a monster when dealing with those who mean Jio harm.