Kei Tonoin (桐ノ院圭)

His appearance is based on a young Herbert von Karajan. Fortunately for us and Yuki, his personality isn't. ^_^ Kei comes from a prominent and wealthy banking family. As the only son, he was expected to inherit the family business. At 18, to escape his family business, he came out to his parents, and studied music in Europe.

He is undoubtedly a musical genius, and makes no secret of the fact. His confidence often borders on arrogance, but like others of his ilk, he is also a bit childish and sometimes rather unreasonable.

(Source: Aestheticism)