Кусанаґі Такеру

The main male protagonist of the series, the twin brother of Kiseki, and the hapless leader of the titular 35th Test Platoon more infamously known as the "Small Fry Platoon". He is one of the last surviving members of the Kusanagi Clan as well as one of the only remaining blade users in the world, a lifestyle that he is constantly taunted for. He is contracted to Lapis Lazuili.

(Source: AntiMagic Academy Wiki)