This arc marks the most significant character development for Erina Nakiri, who evolves from a "bratty snob" into a true leader.

At the heart of the Totsuki Train Arc is the ideological clash between Azami Nakiri’s and the independent spirit of the student body.

: To silence these voices, Central uses the Advancement Exams as a weapon, providing the Rebels with inferior ingredients and biased judges to ensure their expulsion. Erina Nakiri’s Transformation