Hundred
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)
Episode 1 - Little Garden
Episode 2 - The Invincible Queen
Episode 3 - Variant Awakening
Episode 4 - Bodyguard
Episode 5 - Imitation Girl
Episode 6 - The Diva's Love Song
Episode 7 - The Captured Sleeping Beauty
Episode 8 - Night at the Lake
Episode 9 - Dragon Type
Episode 10 - School Festa
Episode 11 - Garden's Crisis
Episode 12 - Friends