Maybe someone in the future can answer this since I only recently started reading the WN, but do those two girls ever get a follow-up in the LN or WN, and can you please spoil it or point to which chapter? There are over a thousand chapters so it'll take a while before I find out.
I'm genuinely curious as to how much of a throwaway plot this was.
Also, last I heard, this manga has 2 artists working on it on the side, which is why manga chapters are infrequent.