Boarding School Juliet Vol. 12 (Kodansha, 2020)

After a river rescue gone awry, Inuzuka has lost his memories! The amnesiac Inuzuka is practically a different person, who proceeds to throw Dahlia Academy into confusion with a myriad of misunderstandings, like mistaking Hasuki for his girlfriend and Maru for his bestie. To get his memories back, mutual arch-enemies Persia and Hasuki will have to do the unthinkable-team up!! Can their love bring the real Inuzuka back in time for the upcoming prefect election?