He seems to be the main guy.. and the Fox second... unless they switch main leads? the good news is though.. the Fox was fcoused on at the start of the manga.. (still is i think..? i have not read the rest of the chapters yet..) but yea..
It seems there was a bad break up between Lion and MC.. and well... they can't stay that way forever... they have to make up someway or another...

Thats not just it anyway... the person who posted the spoiler said that the Fox took advantage of the situation of the break up so... (ugh i know.. why did the author do that..?) i say... Lion..

Unless like i said she gets it on with all of them.. and don't end up with any....? (or picks one.. but i don't see that happening.. ugh..)