The manga has done so much better at covering this arc than the LN/WN and honestly the rest of the story. I don't get why people are calling Masaru weak here though; he's rising to the challenge even if he's losing and clearly knows what he's fighting for. The purpose of the fight is contradictory to the rules they imposed on it but it's not egregiously bad, and it creates some actual tension, rather than just letting MC steamroll him from the start. Makes you feel like he's actually struggling to earn Tilica as a wife.
Rock Dandy seems fun though, hope he shows up later as well. Elizabeth is going to start aging fast if she doesn't cool it with those intense expressions lmao.