Titre original : Winter Days!
As the cold winter weather creeps in, and despite Yui's offer of having nabe with everyone, each of the club members have individual duties. Tsumugi gets a part time job at a fast food restaurant, Mio goes to the beach to get inspiration for her lyrics, Ritsu has to entertain her little brother and Azusa is asked to look after her classmate's pet cat, despite not being good with cats herself. However, Mio cannot think of anything to write, Tsumugi buckles under the pressure, Ritsu ends up by herself and Azusa is left uncertain what to do when the cat starts throwing up. A random text from Yui cheers up the others and she comes to help Azusa with the cat. They all meet up for burgers where Ritsu is shocked to find what she thought was a love letter addressed to her was actually a set of lyrics Mio wrote.