So, 2 specific timestamps from Mumei's stream: the first one when Nerissa had her meeting and Mumei and Bijou had an idea for the drawing about Nerissa and the second one when she came back - we don't need a third one for the start (her first stint ends around the 25th or 26th minutes mark).
https://youtu.be/iaZ-tmSleko?t=3180https://youtu.be/iaZ-tmSleko?t=6972