Races

Races (種族, Shuzoku), sometimes referred to as Tribes (族, Zoku), are groups of sentient beings that share distinctive physical traits. Many races coexist in the Monster Academia, with some originating from the Moon. There are ranks that for F to S-Class. The S-Class are the Strongest and F-Class are the Weakest Class.

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 * —About The Races.

Human World
Most races in the world originated through natural reproduction.

Humans

 * Main article: Humans

Humans (人間, Ningen) are the most common race in the world. They rule over more of the world than any other race. Humans are extremely diverse in their size and appearance. Most are one to two meters tall, but there are many who are taller, with some reaching as high as seven meters. Humans do not typically possess a special physical trait like other races do; indeed, many races' attributes are noted by how they surpass those of humans. However, humans are the most active of any race in scientific research and development, creating weapons and other tools that increase their strength.

Monsters

 * Main article: Monsters

Mermen

 * Main article: Mermen

Mermen (魚人, Gyojin; literally meaning "Fishman")

Giants

 * Main article: Giants

Giants (巨人, Kyojin) heavily resemble humans, with the main difference being their massive size; they are the largest known race in the world, with even large humans barely going up to the level of most giants' knees.

Zombies

 * Main article: Zombies

Zombies (ゾンビ, Zonbi)

Centaurs

 * Main article: Centaurs

Centaurs (ケンタウロス, Kentaurosu) are humans who had the lower bodies of different animals.

Racism
Lack of knowledge and understanding of different races has resulted in centuries of racism between the races of the world.