Genrou Sensen

In a world where beastmen and humans are at odds with each other, Uruto was born half beastman, half human, and he is treated with disdain by both sides. His friend Leo was the only person who treated him as an equal, and Uruto's dream is to fulfill Leo's wish to "kill the beastman who killed his sister." Therefore, despite being a half-beastman, Uruto dreamed of joining the "Narukami," the anti-beastmen unit, in order to make Leo's dream come true. However, on the day of the enlistment examination, to make his dream come true, Uruto must make an ultimate choice...
(Source: Sunday Webry, translated)