Hundred

What is Hundred?

Hundred follows Hayato Kisaragi's enrollment at Little Garden, a marine academy city ship where elite Slayers master the Hundred—humanity's only weapon against the mysterious Savage. Upon arrival, Hayato encounters Emil Crossford, his mysteriously familiar roommate, and immediately faces a duel challenge from Claire Harvey, the school's most powerful Slayer. This action-packed sci-fi series blends mecha combat with military academy intrigue.

The story begins with the Hundred, the only weapon that can counter the mysterious Savage life form attacking Earth. To become a Slayer (master of military arts) who wields this Hundred, the main character Hayato Kisaragi successfully enrolls in the marine academy city ship Little Garden. However … "I wanted to meet you, Hayato!!" "W–who are you…?" Hayato feels a strange yet familiar sense of incongruity towards Emil Crossford, his roommate who somehow knows him from somewhere. On top of that, as soon as he enters the school, he is challenged to a duel by the "Queen" (the school's most powerful Slayer) Claire Harvey! (Source: Anime News Network)