@AnimeaddictionIV
Again, I'll read whatever the fuck I want. And I was not directing my comment to the translator, just stating my opinion. If you want to push it, I was directing it to the author if anything, but not really, since I very much doubt the author would even bother reading this comment section in the first place. And yeah, I would tell british and american authors the same if their shenanigans made no sense in their stories and reduced the quality. Which in this case, and many others, does happen. If french authors went about writing stories with their characters spending half the time going about baguettes and croissants, it would give me cancer too.
The point is, MC in this chapter didn't have to make the others follow his custom. He could have simply done so himself and let others be, but no, they HAD to follow his lead because... he says so I guess. He even gets worked up about it. In fact, it would have been a better written scene if he did it on his own, and the others asked him the reason for it. It woud have been a more natural way to show that MC is being careless when he (seemingly) wants to hide his origins. Also, that's a good point. He wants to "go unnoticed" when it comes to his origins, yet he pulls out of nowhere a custom completely foreign to the land he is in. And on top of that, the others only give it about a few seconds of staring as a reaction and simply go along with it. No comment or anything.
It's clear that the scene is out of place with MC imposing his will out of nowhere when he has been incredibly passive about 90% of the time. In chapter 21, MC and the elf ate together and, judging by the reactions of the elf in this chapter, he did not tell her to "eetuhduhkeemuhsu" or anything. Why's that? The only difference is that the food was not cooked by MC, so... Does that mean that they should thank for the meal only when MC cooks? Makes no sense. And neither does this scene. In conclusion, author put this in the story because muh Japan, and that's about it.