Arrival

Keith hated school, and while having Shiro in his life now that he was enrolled in the garrison program was a plus, being seen as Shiro's favorite wasn't. And then, one day a new kid transfers in from the Japeanse garrison, one the other kids joke looks like Keith's identical twin brother, but the fact Keith looks like Ryo Shirogane - Shiro's younger brother - is a laughing matter.