Hellowww. Need help with master x servant manga. I cant remember exactly what happens, bu...

Hellowww.

Need help with master x servant manga.
I cant remember exactly what happens, but I hope someone will know what Im talking about.
The servant is younger and I think they were childhood friends but something happens and master goes overseas (or something).
When he returns servant is no longer there or at least thats what he thinks in reality the headbutler keeps him from seeing the master.
I also think the servant has like a scar? Not too sure.

Shit dudea I hope someone can help!