A huge sphere suddenly began to emit a mysterious spiritual wave to the Tengu City that should have regained its peace. A mysterious, beautiful girl showed up at the same time. Silently, what is her purpose to cast her line of sight to Shidou and the others? The real purpose is...?

Shintarou Kisaragi—a NEET who shut himself inside his room for 2 years—has been living his life normally until he met a cyber girl named Ene, who appeared in his computer screen when someone anonymously sent him a mysterious e-mail one year ago. One day, Ene had been messing with Shintaro's PC, which causes him have to go to the outside world for first time in two years.

All Might and Deku accept an invitation to go abroad to a floating and mobile manmade city, called 'I-Island', where they research quirks as well as hero supplemental items at the special 'I-Expo' convention that is currently being held on the island. During that time, suddenly, despite an iron wall of security surrounding the island, the system is breached by a villain, and the only ones able to stop him are the students of Class 1-A.

The story focuses on the exploits of rivals Reinhard von Lohengramm and Yang Wen-li, as they rise to power and fame in the Galactic Empire and the Free Planets Alliance, respectively.

Shoyo Hinata joins Karasuno High's volleyball club to be like his idol, a former Karasuno player known as the 'Little Giant'. But Hinata soon learns that he must team up with his middle school nemesis, Tobio Kageyama. Their clashing styles form a surprising weapon, but can their newfound teamwork defeat their rival Nekoma High in the highly anticipated 'Dumpster Battle', the long awaited ultimate showdown between two opposing underdog teams?

While the title suggests a story of simple, everyday school life, the contents are more the opposite. The setting is a strange school where you may see the principal wrestle a deer or a robot's arm hide a rollcake. However there are still normal stories, like making a card castle or taking a test you didn't study for.

When Origami Tobiichi asks Shidou Itsuka out on a date, Shido considers this his best opportunity to set the record straight and end their relationship. However, even with the help of the Ratatoskr crew, his attempts to break up with her fail; in fact, Origami gladly tolerates Shido's humiliating requests and blunt comments! Shido's unconventional mission incidentally complicates his relationship with Tohka Yatogami, and it seems that easing the tension is only possible by going on another date.