Shimamura just happens to run into Adachi's mom at the gym and they have an awkward encounter. Later on, Shimamura invites Adachi to karaoke with Hino and Nagafuji.

Adachi tries to ask Shimamura if she'd like to hang out on Christmas, but has a very hard time getting the words out. Meanwhile, Shimamura wonders why Adachi's been acting so weird lately.

Adachi asks Hino to help her find a Christmas gift for Shimamura and Adachi and Shimamura finally hang out on Christmas.