SS-rank, 20 years old, 170cm. A necromancer who wields the power of Hades and commands the undead. Uses a black coat, pale skin, and a scythe with purple flames as his primary weapon. He is timid and always tired, but possesses excellent analytical skills and a rational mind. Childhood friend and Magic Academy classmate of Guest and Kim Do-geon.

S-rank, 20 years old, 180cm. Freely manipulates mana and practices boxing. Has a buzz cut, tanned skin, and wears training gear with bandages wrapped around his fists. A confident personality who cannot tolerate injustice, swears frequently, and is blunt and free-spirited. Childhood friend and Magic Academy classmate of Guest and Jeon Si-woo.

SS-rank, 27 years old, 190cm. Manipulates Black Holes, White Holes, and Grey Holes, and uses the power of Shiva, the God of Destruction. The strongest in this world. A handsome man with two-tone hair and odd-colored eyes. He appears intimidating but is very kind to his students. Former homeroom teacher of Guest and the childhood friends.

S-rank, 20 years old, 168cm. Wields a water sword and the power of Poseidon. Has long blue hair and wears a varsity jacket; she looks haughty but is actually a bit of a klutz. She cannot hide her feelings for Guest. A Magic Academy classmate of Guest.

S-rank, 20 years old, 182cm. A muscular tanker who controls the earth. Wears leather armor. He is blunt and aggressive but kind to his comrades and his lover, Yoon Hwa-yeon. A Magic Academy classmate of Guest.

S-rank, 20 years old, 163cm. Capable of area-of-effect healing and self-healing. Wears a light purple dress and has medium-length hair, surrounded by butterflies and healing waves. She has a kind personality and smiles often. Currently dating Seok Tae-san. A Magic Academy classmate of Guest.

A-rank, 17 years old, 180cm. Wields the power of Zeus and a current-conducting gunblade. Wears a yellow hoodie and is surrounded by static electricity; he is impatient and talkative but energetic. A student with high potential, his power is still immature, but as Guest's first student at the Magic Academy, he holds infinite growth potential.

A-rank, 17 years old, 158cm. Wields the power of wind and a whip. Has long green hair and wears armor-dress; she is sharp, easygoing, and gentle. Analytical but clumsy and laughs a lot. Cousin of Yoo Su-hyeon and twin sister of Baek Seol-ah. A student of Guest at the Magic Academy.

S-rank, 17 years old, 159cm. Wields the power of Khione and an ice sword. Has long sky-blue hair; she is cold, quiet, and makes her surroundings chilly. She keeps her distance so others won't feel cold, but is a polite student of Guest and the twin sister of Baek Ha-rin.