The cold really makes you lethargic but all you need is a Yui to feel fantastic. They're all having trouble doing their own stuff then she just texts everyone out of nowhere asking the most ridiculous question they've seen all week. Glad that it all worked out in the end and Ritsu being baited by Mio's misleading lyrics was pretty funny too.
Although it serves no purpose, the episode is very nice thanks to Yui: her sympathy is contagious. Smooth and pleasant narration, it makes you want to put your hands on the second season right away, despite having already seen it more than once.