Ah Mami plot device will enter the show once again. Here comes our reminder that she's only here to make this longer and disturb the plot that'll resume at the same place anyway
As some mentionned it's a typical slice of life romance and we rarely get what's after they get together, and as in most case we do the end is just lame. Kinda like authors want to show us what's after but here I assume he didn't really know what he wanted to do. Ch 129 would have been a perfect...