Otome Danshi ni Koisuru Otome - Vol. 1 Ch. 48 - From the shadows

[MangaDex]

 

[Kaarme]

If this kind series was ever made into live action, they would need to hire two actors for Kei, and maybe some other characters, one male, one female, if they wanted to make things look even a little bit faithful to the source. Yuuki, of course, could be simply handled by a female actor entirely.