My Hero Academia

The story of My Hero Academia is set in a world where currently most of the human population has gained the ability to develop superpowers called "Quirks" (個性, Kosei), which occur in children within the age of four: it is estimated that around 80% of the world population has a Quirk. There are infinite types of Quirks, and it is extremely unlikely to find two people who have the exact same power, unless they are closely related. These particular abilities have allowed the development of a new category of people: Heroes, who face the evil-voted individuals who use the Quirks for selfish and criminal purposes, commonly known as Villains. In addition, Heroes who choose to exercise heroism at work level are recognized as Pro Heroes. Unless the individual is registered as a Pro Hero, the voluntary use of his or her Quirk in public places is considered a crime, except in exceptional cases.

Quirks have been collected into three categories:

Emitter (発動, Hatsudō, lit. "Activation")-type Quirk is the most widely used, which gives the ability to produce and release substances or alter the materials within certain limits. As the name indicates, this type of Quirk needs conscious use and, at times, good concentration skills, especially for prolonged use;

Transformation (変形, Henkei)-type Quirk allows the user to temporarily transform his body or part of it in order to obtain physical enhancement or additional skills. With some exceptions, the alterations due to this type of Quirk affect only the users themselves;

Mutant (異形, Igyō)-type Qurik always keeps passively active amplifying or altering functions and abilities of an organism and, for this reason, induces in the wearer far greater bodily mutations than other types, which makes wearers of this type of Quirk easily recognizable. Managing control of these skills requires training and, however, the resulting mutations can cause problems or inconvenience for users.

Anything related to these powers, including the biological changes and mechanisms that allow them to function as well as the aspects still unknown, is summarized with the expression "Quirk Factor". After the initial manifestation of a Quirk, it is also possible that the Quirk undergoes an "Awakening", and evolves. This leads Quirk to obtain new skills that were previously not possible. The "Quirk Singularity" theory is a popular line of thought that suggests that Quirks will continue to mix, growing in strength and complexity with each new generation, until they develop to a point where no one will be able to control them anymore.

Plot

Izuku Midoriya dreams of becoming a Hero despite being bullied by his violent childhood friend Katsuki Bakugo for lacking a Quirk. Both youths idolize one of the world's greatest heroes All Might, who they both met with Izuku being one of few to know of an critical injury All Might has been concealing from the public eye to maintain morale. All Might also reveals the nature of his Quirk "One For All" and passes it down to Izuku to succeed him after seeing the youth's determination in the face of danger. As Izuku begins his path to becoming a hero in attending U.A. High School (雄英高校, Yūei Kōkō) alongside Bakugo and the friends they make in Class 1-A, a nemesis to the "One For All" users named All For One conditions his apprentice Tomura Shigaraki to destroy the current society and its heroes.