I hate the elf.
It goes into how the editor (or author) manga sucks at worldbuilding.
- Imagine your
friend benefactor/mentor being a victim of attempted murder, because of racial discrimination.
Then without asking them, interjecting on their behalf, saying an apology isn't necessary.
- Imagine if it was any other adventurer (whom the guard didn't like).
Or your friend wasn't superpowered hero of somekind.
And the guard acted as a proxy of power for nobility to get the adventurer maimed/killed.
By the noble's own pet, in the noble's own mansion.
- Not only would I demand an immediate apology, and spurn the mission.
I'd report it to the guild (attempted murder via commissioned E-rank job).
And report it to any other adventurers in their territory. (And other nobles, if I was spiteful.)
- This would (properly) make it impossible for that noble to hire (novice) adventurers ever again, as trust is broken.
("That noble['s staff] hires people to maim / kill them if they don't like them. They tried to kill an A-rank unknowingly.")
Get that elf out of here.
Peace-drunk Japanese mindsets don't belong in a ficticious isekai.
Especially tone, where it's one lethal force in self-defense, has already been used on-screen.
Not some happy-go-lucky magical girl friendship romp manga.
It's as jarring as editors who try to shoehorn "Tsukommi" comedy skits in lethal scenarios.
(See first episode of Elfen Lied anime, Kisaragi, for self-aware reference. IYKYK. Gore warning.)