After enjoying the New Year's festivities

It's back to business as usual for Shinozaki and his coworkers—he continues to be the target of his senpai Katase's lighthearted teasing, and yet the two remain unable to tell each other how they feel.

However, that may not be the case for much longer thanks to Shinozaki's sister, who, ever since getting to know Katase during their New Year's shrine visit, has been doing everything in her power to bring them closer together! (Though it doesn't always work out...)