>>47660991looks like it's a game show where viewers can participate by filling out the form she proposed, guessing what each holo is like without knowing anything about them?
here's the rough TL from Koyori's previous stream:
miri-shira stands for not knowing anything about something, it was trending a while ago where people were asked about anime characters after only seeing one scene from them.
in the box next to their picture, write their imagined name, and in the box below, their imagined description