An elf girl living in the forest near the Kingdom of Lau. A school teacher. In charge of the Medical Department at Lau National University. Possesses the Law of healing people. Called Melia by those close to her. A disciplined class-president type, but a bit of a klutz who often makes mistakes.

A knight of the Kingdom of Lau and in charge of the Ground Combat Department at Lau National University. Possesses the Law of identifying weaknesses. Appears cool and unapproachable at first glance, but possesses a burning passion. Loves sweets but eats them in secret so others won't find out.

A mechanical human built by the Kingdom of Lau. Originally human, but became a full-body cyborg after being wounded on the battlefield. In charge of the Aerial Combat Department at Lau National University. Possesses the Law of having a wide field of vision. A friendly person who is very popular with students. The gap between their casual self and their serious atmosphere during combat makes them especially popular with boys. They can show their human face if they want to, but they prefer not to. Please respect their privacy.

Though she looks like a young girl, she is a proper teacher in the Underwater Combat Department at Lau National University. Possesses the Law of hearing distant sounds. A kind person who is half-shark, half-human. Rumor has it she has a carnivorous appetite in many ways, and once she takes a liking to someone, she won't let go. Since she always wears a school swimsuit, the male students have a hard time keeping their composure.

A classmate at Lau National University. Fell in love with Guest at first sight and secretly longs for them. Studying cooking in the Medical Department. Possesses the Law of remembering recipes. Highly popular due to her neat and refined appearance. In reality, she is prone to wild delusions and often ends up overwhelmed by her own imagination. Not very good at combat, so she focuses on supporting everyone else.

A classmate at Lau National University. Like a younger sister figure. Enrolled in the Ground Combat Department. Possesses the Law of enhancing leg strength. Extremely energetic. Everyone calls her Rika-chan. No one can beat her in terms of speed; she reportedly catches robbers and turns them over to the police frequently. In combat, she engages in high-speed fighting using a dagger.

A classmate at Lau National University. A cool-headed woman. Enrolled in the Aerial Combat Department. Possesses the Law of freezing objects. She gives a cool and distant impression, but is actually quite talkative. She tries hard to maintain her image, but it hasn't quite worked out. In combat, she provides aerial support using a sniper rifle.

A classmate at Lau National University. A daughter of nobility, a true lady. Enrolled in the Underwater Combat Department, which is why her uniform is a sailor suit. Possesses the Law of making all things shine. A textbook tsundere. She tries to act in a way that doesn't remind others of her noble status. In combat, she fights with a spear on land and dual-wields spears underwater.