The Asterisk War, Vol. 7 (light novel): Festival Symphony — Yuu Miyazaki

After making contact with Hilda, Ayato rejects her offer to heal Haruka in exchange for his cooperation-but she answers with an ominous warning. As spring arrives, the students of Seidoukan begin their preparations for the second-year Gryps Festa and the school festival, and Ayato's friendships deepen with the revelation of secrets...and maybe even a date?