great update!
Maybe you should make it looooooongeeer....
make Sato suddenly propose Yuki and Yuki have no choice but to accept it and poor Mayu..
he needs to work hard to make Yuki fall for her because he already made a promised to her grandpa. and then Mayu change his appearance to a 'perfect ideal guy' and attract Yuki but then he change back to a nerd boy. *sigh* what am I saying?
it would be great if it long fic wmatsui22-san!