Uhm basically, you're in a group chat with those. Good luck cuz you know...they'll blow up yo phone if you don't tell them to stop fighting. They're actually in a fight cuz Shidou kept doubling his words like "why why are are you you here here ??" And it make Rin mad.

Shidou: ur ur mad mad, tf tf. 💀

Rin: NAH CUZ YOU SOUND DUMB DUMB DUMB DUM-

Shidou: u mad u mad 💅

Rin: NOBODY MAD-