In the chaotic and complex world of quirks and superpowers depicted in the popular series My Hero Academia, modern society has developed a regulated system of licensed heroes to uphold peace and justice. Within this system, heroes work closely with the authorities and under official oversight. However, some individuals still choose to fight crime outside the boundaries of the law as vigilantes. When quirks first emerged among the population, there was no formal structure in place to govern their use or address criminal acts. Certain empowered individuals began taking justice into their own hands as a result.