The girls arrive at the Syowa Station where they will be stationed. As everyone gets the station ready, Yuzuki, who had just been offered a role for a drama, becomes curious about what point she officially became friends with the others. As the crew enjoys a Christmas party, Yuzuki becomes further confused about what friendship means when Mari cries after she proposes having Friendship Contracts. Later that evening, Mari tells Yuzuki about how she views her friendship with Megumi before everyone shows up for a belated birthday celebration, giving Yuzuki her first birthday with friends.