Star Nun: "Oh, sorry Father Monk." Father Monk: "It's fine. I can take it, in contrast to brother Frond who completely lost it over the "Brownie Chair Surprise" by that little girl with the Bunny Ears."
A little bit hard to name the character drawn by this artist (because he/she usually only write one kanji), but it's confirmed in the reply of the original tweet that she's Tomoe from Nijisanji.