I don't know what theyre saying, but it's cute <3

The blue haired one tells them that she's the leader and that they should do what she does.
When she trips and falls, the other follow suit

is what I believe.

You're right, Seth. I don't know the exact words, but there's a "leader" and the red mentions following her.

it dosn't look like touhou to me, unless that is cirno

Kona, it's the fairies from the games. They carry flowers if PoFV.

this art style kind of reminds me of deep takezaki...

Right. I checked and found it on his site. added source and artist tag.

Garwood said:
Kona, it's the fairies from the games. They carry flowers if PoFV.

In addition, I believe this is a reference to the fact that when you kill one fairy in PoFV, all of the fairies next to it die as well in a chain reaction.

this is full of win lol.

The blue one doesn't seem to mind at all here.

they are so adorable