The story could have been a bit longer if author explored the side cast more, put more slice of life elements. Seeing the side characters are just background - I don't even remember the two girl classmates name because they were barely called by their name at all - I already accept the...
We're truly in endgame now. Without adding rivals and love triangle or exploring the side cast, there is so much you can make out of a story about a established couple. Unless it's more like Akira Momose's first love struggle, focusing on comedy by creating ridiculous situation and shenanigans.
This remind me of a certain hentai about an Africa tribe girl come to Japan to marry her childhood friend whose father is an archaeologist...
Until that damn trap part comes!