Are you doing this on purpose...? The nitpicking, I mean...?
The reason why Wave wanted to beat Syura or why Run wanted to kill Champ don't mean shit right now. Fact is that the last volume focused on Wave and Run fighting off with a Wild Hunt because of a personal reason. Chapter 46-47 was Wave fighting it off with Syura and interacting with his fellow comrades, 47-48 was Run interacting with his fellow comrades (getting closer to them), revealing his background and fighting it off with Champ. Fact is, last volume didn't focus on Run any less than it did focus on Wave so yeah, Run was heavily focused on last volume.
You're probably trolling so won't offer an actual response. Won't fall for it this time.