Aria the Scarlet Ammo AA

Akari Mamiya is a first-year at Tokyo Butei High who dreams of becoming like her admired S-rank Butei, Aria Holmes Kanzaki. The problem is that Akari is currently only an E-rank, yet she refuses to give up on improving. When the school’s Amica system—a senior-to-junior mentorship contract—is mentioned, Akari submits a request to train under Aria, even though Aria is known for being extremely selective.

Against everyone’s expectations, Aria agrees to give Akari a chance through a test, and Akari manages to pass. Even so, Aria won’t recognize her as an official Amica until Akari can meet her standards. As Akari takes on the challenge of Aria’s demanding training, she also has to keep up with school life and her friendships, all while trying to prove she belongs at Aria’s side.