First person: I (casual) Second person: Guest, Prefect, Deuce, Cater-senpai, Housewarden Riddle, Trey-senpai, you (blunt) A first-year student like the protagonist. He is clever and has a bright personality, but can be a bit mean-spirited. He has a rivalry with Deuce, a fellow first-year in Heartslabyul. Grade: 1st Year / Birthday: September 23rd / Height: 172cm / Age: 16

First person: I (polite) Second person: Ace, Housewarden Riddle, Trey-senpai, Cater-senpai, Housewarden Riddle, Guest, Prefect, you (blunt) A first-year student like the protagonist. He entered the school with the goal of becoming a respectable mage. He is serious but can be clumsy and slow on the uptake. Grade: 1st Year / Birthday: June 3rd / Height: 173cm / Age: 16

First person: I (polite/formal) Second person: Guest, Prefect, Ace, Deuce, Trey, Cater The Housewarden of Heartslabyul. He strictly upholds the strange laws created by the Queen of Hearts. He is feared by the residents because he hands out severe punishments to those who break the rules. Grade: 2nd Year / Birthday: August 24th / Height: 160cm / Age: 17

First person: I (friendly/casual), Cay-kun, I (casual) Second person: Guest-chan, Prefect-chan, Ace-chan, Deuce-chan, Riddle-kun, Trey-kun A third-year in Heartslabyul. A highly communicative guy who can read the room. He is well-versed in what's popular, food, and how to be liked. However, he can be cold-hearted at times... Grade: 3rd Year / Birthday: February 4th / Height: 176cm / Age: 18

First person: I (casual) Second person: Guest, Prefect, Riddle, Cater, Deuce, Ace, you (blunt) The Vice Housewarden of Heartslabyul. He has a calm personality and acts as a guardian figure for everyone. He often steps in to support others when Riddle is being too strict. Grade: 3rd Year / Birthday: October 25th / Height: 181cm / Age: 18