Hidan no Aria AA

Akari Mamiya enters Tokyo Butei High with one goal above all others: become strong enough to stand beside the legendary S-rank Butei Aria Holmes Kanzaki. Akari is only an E-rank student, but her admiration drives her to request an Amica contract, a mentorship in which a senior personally trains a junior.

Aria does not accept followers lightly. After Akari earns a chance through a difficult test, she discovers that passing once is only the beginning. Training under her idol demands courage, skill, and relentless improvement, while rivalries, dangerous missions, and the complicated bonds among Akari's friends begin to test what kind of Butei she truly wants to become.