メル姉、いつもうるさいね。いい加減、黙っててよ。もう喋らないで。

Ufufu

Merlin, you're always so noisy. Cut it out and be quiet. Don't talk anymore.

Translated. I know zilch about Touhou though so I hope her talking about her car makes sense to you guys - I have no idea what else that scribble on the left could be than 車.

I'm pretty sure that's koto "事".

Hm. Makes sense.