I agree, it was an unneeded sex scene, if this was hentai it would make sense but this is just a h-manga meaning we don't need to see everyone's sex lives
On one hand it's rare to see an the author take the leap of putting another guy in an x scene unrelated to MC.
On the other, how about you just don't? The story is supposed to follow the main character/s, not the x scenes.
nah, as long as the main character is getting a lot of action, I like seeing the world alive with other ppl also banging. tho if he got the second trio It would be too much, they look better than the main trio...