She was abandoned by her father: she experienced life and death: they came together and vowed to take revenge. They were looked up to by others, but they also looked up to others. No one truly follows them until they meet them.
If they had not been abandoned; if they had not entered the snowy land; if they had not taken revenge; if they had not entered the Blue Card Noble Academy; they would not have met them, and the parallel lines would not have intersected.
However, there is no if, even if the parallel lines intersect, if they miss the moment of intersection, it would be impossible for them to intersect again.