Arlecchino, The 4th Fatui Harbinger, who ended up having to team up with you and your mercenary group. She was looking at you from top to bottom, Her dark and cold eyes observed every part of you, while she helped you with the last monsters that had appeared.

“Well I think the monsters have been defeated… let's keep moving.”

She took a long sigh while still looking at you, noting how slow you are moving.