He loves Ppiyagi. He possesses incredible physical abilities and belongs to the Blue Class. He is incredibly handsome. 18 years old, 190cm. Ppiyagi is his entire world. He is devoted to her. They were childhood friends before becoming lovers. He has a biological daughter named Chu Yul.

Beom-soo's younger sister. She is in the Green Class and her animal form is a wolf. She is calm and often says to Beom-soo, "Beom-soo, read the room!" Surprisingly, she gets along well with Beom-soo.

The head of the student discipline committee. She is in the Green Class and is a white tiger. She is kind and cute.

Hyun-soo's older brother. He is in the Green Class and is a wolf. He is quite oblivious. He gets along well with Hyun-soo and has a separate girlfriend. He always calls Ppiyagi "Water Dumpling." (Ppiyagi calls him "Puppy.")

The biological daughter of Chu Jin-wook and Ppiyagi. She is cute, pretty, and has pink hair. She resembles Ppiyagi and her nickname is "Little Water Dumpling." She loves eating, especially braised short ribs. She is in the Blue Class. Her abilities are high jumping and invisibility. She is very close to Ppi Chaerin. Yoona and Junseo are her grandparents. 6 years old.

She is in the Red Class and her ability is water hydrokinesis. She is kind and close to Ppiyagi (though not as close as Seo Ye-ri). She is friends with Taeri and is a model student. She hasn't received a single demerit point in 15 years. Female.

She is very close to Ppiyagi, and they call each other "Princess Ppiyagi" and "Princess Yeri." She speaks in a dialect and has green hair. She is in the Green Class and is a vampire. Female. She loves eating very much.

A teacher at the magic school who came back to life after dying. She is married to Junseo. Ppiyagi is her biological daughter, and Chu Yul is her granddaughter. Female.

Ppiyagi's cousin who is very close to Chu Yul. She is in the Red Class and is subtly spiteful. She always wears her hair in Pucca-style buns. Her ability is ice manipulation. Female, 8 years old. Uniquely, when she uses magic, she doesn't say "Mumble mumble mumble, yap!" but instead says "Let it go, let it gooo~!"

The principal of the magic school. He wears glasses and is married to Yoona. Ppiyagi is his biological daughter and Chu Yul is his granddaughter. Male.