The art. Oh my, such wonderful art. I love the age difference, the realistic plots and the love of the seme for the uke. I like how supportive the seme is and how hard working the uke.
They suit each other.
P.S. I hate the new character. Yuuki? Yeah, the courage to shamelessly steal other people's stuff and call it your own talent. Psh
Akuma To Keiyaku (haru)