In a world filled with superpowered Quirk users, college student Kouichi Haimawari's dream is to become a hero just like the ones he so admires. Unfortunately for him, he finds out that there is only so much he can do with a sliding ability that gives him about as much speed as a bicycle. Thus, he is drawn to extra-legal, simpler work and takes on various local tasks beyond the grasp of the police and licensed heroes. However, a chance encounter with two misfits, a brash brawler vigilante who goes by Knuckleduster and the online sensation Pop☆Step, gives Kouichi the opportunity he has always dreamed about. With a dangerous new Quirk-enhancing drug turning ordinary people into instant villains, Kouichi finds himself accompanying the two in a quest to stop the drug from spreading. As the trio tries to get to the bottom of the case, the chaotic team looks to put a stop to wrongdoers that go overlooked by the law.

Bundled with the 5th volume of the Kekkai Sensen: Back 2 Back manga.

The alien invader Goa plots to conquer the Earth. He first warns the Murakami family (father Atsushi, mother Tomoko, and son Mamoru) of their invasion, and demonstrates his powers by transporting them to a prehistoric jungle and destroying a Giant Dinosaur before their very eyes. But they will not agree to surrender to Goa, so hope comes in the form of Magma, an armored, golden giant with long hair and antennae. He and his human-sized wife Mol, both created by the wizard Earth are sent to defend our world against Goa. They befriend Atsushi and Mamoru, the latter has Magma emotionally touched, as he wanted to have a child with his wife Mol, so Earth creates a duplicate of Mamoru, named Gam Earth gives Mamoru a whistle, with which he can call Gam Mol and Magma in times of crisis. So when Goa unleashes his various daikaiju, chances are, Magma, Mol, and Gam will fly to the rescue.

Since the discovery of "Samon Syndrome" 30 years ago, thousands of young people have traveled to fantasy worlds, the few returnees managing to keep the special abilities they acquired in those parallel universes. Akatsuki Ousawa, known as the "Rogue Hero," discards his peaceful life in the fantasy world Alayzard to face new challenges upon returning to Earth. He comes back with Miu, the daughter of the Demon King he defeated, and is now forced to hide her true identity by having her pose as his little sister. The two soon join Babel, a special school designed for those who have acquired special abilities and magical powers through their journey to a fantasy world. Babel was seemingly founded to train young interdimensional travelers and "guide them to the right path for the sake of humanity and themselves," but its true purpose remains unclear to the pseudo-siblings. Will Akatsuki and Miu be able to overcome the hostile, powerful student council and uncover the forces at play behind the scenes? [Written by MAL Rewrite]