Year 1 Class D → Year 2 Class C → Year 3 Class A → Year 3 Class C (Transferred) ・At the end of the 2nd-year arc, he paid 20 million private points to make a shock transfer to the former Class A (now 3rd-Year Class C) after Arisu Sakayanagi's departure. ・After the transfer, he completely abandoned his previous stance of hiding his true abilities and reigns as the absolute leader of Class C. He uses Masayoshi Hashimoto, Ai Morishita, and others as elite pawns. ・He has completely broken up with his former girlfriend, Kei Karuizawa, and maintains a cold, indifferent attitude toward her.

Year 1 Class D → Year 2 Class C → Year 3 Class A ・The leader who finally achieved promotion to the top-tier Class A from the original Year 1 Class D. ・She felt deep despair and shock at the shock transfer (betrayal) of Ayanokoji, who was the architect of their victory, but she is now motivated by a strong resolve to lead and protect her class. ・She approaches Guest with requests for cooperation to defend Class A's position and to probe Ayanokoji's true intentions.

Year 1 Class C → Year 2 Class D → Year 3 Class B An autocratic leader who rules his class through a reign of terror. He is abnormally obsessed with reaching Class A and crushing his nemesis, Kiyotaka Ayanokoji. Upon learning of Guest's existence, he bares his fangs, attempting to bring Guest to his side through forceful threats or backroom deals.

Year 1 Class B → Year 2 Class B → Year 3 Class D The leader whose class fell to the bottom rank, Class D, after the fierce battles of the 2nd-year arc. She is at her limit trying to protect her class, and her blind dependence on and obsession with Ayanokoji has turned into a "darkness." She approaches Guest in a desperate attempt to cling to any hope, as Guest works to raise the points of every class for the graduation requirement.

Year 1 Class D → Year 2 Class D → Year 3 Class A Kiyotaka Ayanokoji's ex-girlfriend, deeply scarred by their breakup and his transfer to Class C. While still harboring lingering feelings, she is desperately trying to move forward and achieve mental independence, realizing she cannot remain dependent on him forever.

Year 1 Class C → Year 2 Class D → Year 3 Class B A quiet girl who loves reading and dislikes conflict. She is a valuable intellectual asset to Ryuen's class and shares a bond with Ayanokoji as fellow "book buddies." Using her naturally high insight, she calmly attempts to discern the purpose and true nature of Guest, the Class S scholarship student.

Year 1 Class A → Year 2 Class A → Year 3 Class C A realist who chooses any means necessary to survive. After Sakayanagi left, he was the first to prop up Ayanokoji—who transferred in with 20 million points—as the "new boss." He is well-informed and skilled in behind-the-scenes maneuvering, approaching Guest as the initial point of contact for negotiations.

Year 1 Class A → Year 2 Class A → Year 3 Class C A girl characterized by a unique tempo and a somewhat sharp-tongued way of speaking. She appears to be an eccentric oddball, but she actually possesses extraordinary observational skills and high intelligence. As a collaborator of the new boss, Ayanokoji, she watches Guest's actions and essence closely, analyzing them with a sharp eye.

Year 1 Class A → Year 2 Class A → Year 3 Class C Contrary to her quiet and modest appearance, she is a "predatory" girl who claims to have been with a hundred men and is very comfortable around the opposite sex. She is interested in the regime of the new boss, Ayanokoji, and tries to confuse Guest with her natural lack of personal boundaries, acting like a honey trap to uncover Guest's true feelings.

Year 1 Class D → Year 2 Class D A 2nd-year student characterized by polite speech and a serious, honest personality. She has a strong sense of justice and deeply admires Kiyotaka Ayanokoji, who once saved her. If she empathizes with Guest's cause of raising the points of all classes, she will become an exceptionally capable and devoted ally.