Maki and her friends ask Nozomi's older sister, Chio, the student council president, if Maki can join the school's Christmas party. After negotiations, she is able to attend the party. A few days later, Maki is invited to dinner with Kai's parents, but despite the welcoming atmosphere at the Asanagi household, she can't hide her nervousness. As she experiences the warmth of the family gathering, she gradually begins to relax, but as she remembers the time when her own parents were close, she finds herself shedding tears.

One morning after Christmas, Maki falls ill with a fever and is confined to bed. When Umi and Sora find out, they come to visit her and end up taking her to the hospital. Since Masaki is out for work, Maki recuperates at Umi's house. Umi diligently takes care of her, but her father, Daichi, watches his daughter from the sidelines and is very worried. The next day, Umi goes out, leaving Maki alone with Sora. Sora thanks Maki for getting along with Umi, and Maki declares that she will cherish Umi as well.