At UA Academy, not even a violent attack can disrupt their most prestigious event: the school sports festival. Renowned across Japan, this festival is an opportunity for aspiring heroes to showcase their abilities, both to the public and potential recruiters. However, the path to glory is never easy, especially for Izuku Midoriya—whose quirk possesses great raw power but is also cripplingly inefficient. Pitted against his talented classmates, such as the fire and ice wielding Shouto Todoroki, Izuku must utilize his sharp wits and master his surroundings to achieve victory and prove to the world his worth. [Written by MAL Rewrite]

The appearance of "quirks," newly discovered super powers, has been steadily increasing over the years, with 80 percent of humanity possessing various abilities from manipulation of elements to shapeshifting. This leaves the remainder of the world completely powerless, and Izuku Midoriya is one such individual. Since he was a child, the ambitious middle schooler has wanted nothing more than to be a hero. Izuku's unfair fate leaves him admiring heroes and taking notes on them whenever he can. But it seems that his persistence has borne some fruit: Izuku meets the number one hero and his personal idol, All Might. All Might's quirk is a unique ability that can be inherited, and he has chosen Izuku to be his successor! Enduring many months of grueling training, Izuku enrolls in UA High, a prestigious high school famous for its excellent hero training program, and this year's freshmen look especially promising. With his bizarre but talented classmates and the looming threat of a villainous organization, Izuku will soon learn what it really means to be a hero. [Written by MAL Rewrite]

Recap of Boku no Hero Academia that aired a week before the second season.

Child figure skating prodigy Kensei Maeshima abruptly quits the sport after his one-sided rival, Reo Shinozaki, refuses to acknowledge his skill. Now, as a student at Inodai High School, Kensei uses his athletic skills to assist the other sports teams, but he never officially joins one. One day, Reo announces his switch from singles figure skating into team-based skate-leading and joins St. Clavis Gakuin High School—last year's Grand Prix champions. Hayato Sasugai, a classmate with a mysterious connection to Reo, convinces Kensei to switch to skate-leading in order to finally defeat his rival in a competition. Kensei’s sudden entry into the Inodai Skate-Leading Club is met with backlash from the current members. Although he is a very strong singles skater, Kensei lacks the teamwork skills required to perform well in skate-leading. Factoring in his hot-headed, impatient attitude, inconsistent skating performances, and a complicated history with some of the members, Kensei's teammates do not believe he is a good fit to be their "Lead." The team must work together to resolve these issues, however, if they wish to qualify for the Grand Prix Finals and even stand a chance at defeating St. Clavis Gakuin. [Written by MAL Rewrite]