Narumi and Hirotaka went from being otaku friends to being in a relationship. However, Narumi feels awkward and starts avoiding Hirotaka. When they notice what's going on, their senior coworkers Hanako Koyanagi (a cosplayer) and Taro Kabakura (a mild otaku) try to give some advice.

It’s the end of the year, and Christmas is coming up while everyone is busy. Hanako, who tells Narumi that last year’s Christmas was the worst ever, isn’t expecting much this year. Meanwhile, Kabakura is busy at work...

Narumi goes over to Hirotaka's place on the last day of vacation while fantasizing about how Hirotaka would react when she shows up unannounced. However, when she rings the doorbell, no one answers.