In Haikyuu!!: vs. Akaten, which takes place in the second season, Hinata and Kageyama fail a test and find that the make-up exam conflicts with their training camp.

There are strange people in this world. If it is short, it will disappear for several days, and if it is long, it will disappear for hundreds of years. The name and personality changed, and suddenly appeared by someone's unexpected idea. Even though he is the most weird, he is loosely accepted and used by his boss. This is the story of such strange people. (Source: MAL News)

Six months have passed since the victorious Battle of Britannia and the reclamation of Gallia from Neuroi invaders. Yoshika Miyafuji, member of the famed 501st Joint Fighter Wing, has come back home to Fuso and graduated from middle school. However, her fight is far from over. She receives a letter supposedly sent by her long-deceased father, containing blueprints of a state-of-the-art Striker Unit he had been working on before his death. The Unit, designed specifically for Yoshika, might be capable of harnessing her extraordinary magical powers. Meanwhile, a new threat in Europe is rising. A Neuroi nest of an unprecedented size and might has appeared over Venezia, wiping out local Witch forces and instantly swallowing the northern part of the country. To make matters worse, a newly spotted humanoid type of Neuroi is attempting to come into contact with humans. Yoshika, incapable of abandoning her friends on the front lines, must once again venture to the war-torn continent. [Written by MAL Rewrite]

Tetsuhiro Morinaga is in love with his upperclassman Souichi Tatsumi. He even manages to confess his love. Too bad it turns out that Tatsumi is an aggressive, self-centered, and outspoken homophobe. Yet somehow Tetsuhiro managed to fall in love with Tatsumi, the “walking personality disorder,” who is the kind of man who declares that all gay men should be wiped off the face of the planet. An unfortunate accident with an aphrodisiac drug brings the two men physically together against Souichi’s will. The experience has a life-changing effect on both men. But will it ultimately bring them closer, or drive them apart?