What is the context of the video below (from 1:18 to 1:26), especially the word 「れいせい」's meaning in it?
https://youtu.be/ehSCmkVVjlg?t=78 (try using a VPN if you can't load the video)
For the time being, I'm guessing that it is 励精, based on the vague content that I have picked up on, but I still couldn't understand how it's used in such a way.
Thank you for your answers!