This was such a good story. There were many parts that made me giggle. The characters were well written and believable.

Huh. Never realized that it was only the Stray Trio that was seriously injured.
Everything back to normal. A decent ending.
I read like only 2 of your works, but I noticed some traits.
One-Alfred has a hero complex that is Good. Not annoying.
Two-Russia is not so much Evil as ‘bad.’ He’s ‘Okay.’
Three-Finland is badass.
Four-Arthur is fatherly.
Five-Its Basically Married SuFin
Six-The length makes things a bit tedious at times. It tends to drag on.
Seven-Canada exists and is the Responsible Adult.
Eight-America gets injured while being ‘heroic.’
Nine-Its semi-based around Alfred.
Ten-Al is a sunshine ball that, at most, only irritates others.
Eleven-Germany is boss. In a good way.
Twelve-The Italies are generally useless.
Thirteen-Japan is Calm
Fourteen-There are no official ships (including SuFin), but there are enough hints of it for Love. It could be read either as Platonic or shippy. I personally really like this trait.
Fifteen-Al has super strength and shows it. (Its Canon Folks. Use it.)
Sixteen-Healing isn’t instant. Fast, but not instant.
Seventeen-Natural Disasters
Eighteen-A semi-lack of food that isn’t truely that troublesome.
Nineteen-Concussions.
Twenty-Ally has stuff on him that is minorly useful.
Twenty One-Two spilt situational POVs.
Twenty Two- Alfred is forgetful until he is semi-seriously injured.
Twenty Three-Animals are helpful.
Twenty Four- NA Twins. Mattie nickname.
Twenty Five- America is cuddly when injured.
Twenty Six-Human names but still counties.

Whale! U included him! Yay.

This is a really good story. I'm surprised it isn't more popular.

I want to see Prussia's awesome lobster cosplay. . . .

That hamburger . . . was actually a genius idea.

Don't disrespect the hamburger like that, Mattie.

Looks like Whale was right, Ludwing.

When in doubt, follow the aquatic mammal.

Whale! I was wondering if he'd make an appearance.

Thank you, Hungary. The annoyingly awesome Prussia needs a nap.

Well, at least R didn't throw Feli over. But where is Romano?

Good job with the socialization, Mattie.

I really hope that Romano didn't throw Feli overboard.

Thank you for the story! The fireworks bit was awesome. :D I wish you the best of luck on your writing!