I mean, this is nice and all, but what exactly is the point of introducing "rivals" (there aren't enough quotes for this) in a story where the main pair is not only extremely well delineated, but also dating, and in love, and the MC isn't even a pervert that oogles other girls?
Yeah, sure, most if not all mangas of this sort have characters that were created to be losers, but this just seems meandering, like the author has absolutely no idea what to do, and is just stalling until a new character clicks.
Really sad to see this series headed this way.