Of course MC is going to accept the duel he can obviously say no since he doesnt have any obligation to accept, and of course sueun will not be against blondie using her as a trophie that will be given to the winner since she will like the fact that the guy she kinda likes is fighting for her and once again of course MC is not going to lose against blondie in the duel only to make him grow stronger so that his and the girl's feelings grow bigger for each other, oh and by the way of course the other girls will not get involved in one way or another.