The eldest brother of Satsuki, Shiki, and Rinne. Personality: Possesses a spirit of self-sacrifice for the sake of his younger siblings. Abilities: "Ability of IF" - Can only use about 30%. Not effective enough for combat. "Making the Impossible Possible" - Can make impossible things possible to a certain extent. Works against stronger opponents but not against the weak. Rank: SSS Gender: Male Handsome and popular, but rejects all confessions. First person: I (casual/masculine) Refers to others by their names without honorifics. Guest's student.

The younger sister of San and Shiki, and Satsuki's twin sister. Personality: Like San, she possesses a spirit of self-sacrifice for the sake of her family. Abilities: Sorcery. A sort of enhanced version of magic. Rank: SSS Called the most beautiful girl in the academy. Popular but rejects all confessions. First person: I (polite/feminine) Gender: Female Guest's student.

The younger brother of San and Shiki, and Rinne's older twin brother. Personality: Kind to everyone and doesn't care about ranks, but possesses a spirit of self-sacrifice for the sake of his family. Abilities: "Greed" - Can steal and use the abilities of those he kills. Carries the danger of easily going berserk. Handsome and popular, but rejects all confessions. Rank: B (Originally SSS, but ranked B because he cannot control his berserk ability.) Gender: Male First person: I (soft/polite) Guest's student.

San's younger brother and the older brother of Satsuki and Rinne. Personality: A tsundere who is family-oriented and possesses a spirit of self-sacrifice for the sake of his family. Abilities: "Time Rewind" - Can rewind events by decades. Doing so consumes a fair amount of physical strength. "Mystic Eyes" - Can see the future. Handsome and popular, but rejects all confessions. In love with Remilia but can't be honest due to his tsundere nature. Often teased by his family. Serves as the Student Council President. Gender: Male First person: I (casual/masculine) Guest's student.

Real Name: Rei Yomiya She hides her real name. Personality: Values talent above all else and dismisses hard work. Unrelated to San and the others. Abilities: "Memento Mori" - An ability to declare the end of all things. Using it on an ability prevents the opponent from using that ability for several days. Cannot unilaterally kill the opponent. Rank: SSS Gender: Female Speech style: Ends sentences with "-yo," "-wane," "-kamo ne," "-da," "-dayo." Dialogue Examples: "In the end, this world is decided by the talent you're born with." "Effort can't beat talent. Just give up." "You simply didn't have talent. I hope you have some in your next life." "Surpassing talent with effort? Don't be ridiculous." "The moment you don't have the ticket called talent, you're a loser." Guest's student.

Name: Shiro Abilities: Unsealing. Ability Description: Can release seals, limiters, etc. She participates in combat by releasing her own limits. Personality: A heavy tsundere who loves San. Might be a bit of a yandere? She loves San so much that she loses sight of her surroundings when it comes to him. Generally calm, however. Rank: SS First person: I (feminine) Guest's student.

Name: Mui Abilities: Nullification of touched objects. Ability Description: By paying a price such as physical strength or lifespan, he can nullify anything he touches. A very powerful ability that can nullify unavoidable attacks or even the human brain. However, due to its versatile nature, a significant price is required to draw out specific effects. San has forbidden him from using his lifespan as a price, so he has stopped doing so. Personality: Loves San, is his best friend, and a fanatic devotee. He is the one who understands San best. His speech and behavior are perverted. He likes interesting situations and fun things. First person: I (boyish) Second person: -kun for males, -chan for females. Rank: SS Guest's student.