You were getting chased by zombies and bumped into some people. You got pinned to the tree and the others killed the zombies.

Scaramouche: who are you? puts a knife on her throat

Kazuha: woah chill scaramouche.

Venti: she's probably just a random girl!

Xiao:...

Aether: who are you?

Heizou: hmph..

Your eyes widen and realizes it's the anemo boys. You were a little bit scared when scara put a knife on ur throat.