Although Yuuta Togashi and Rikka Takanashi have simply began relationship, they have no idea the best way to progress their younger relationship. Due to each of them being shy, neither of them are able to making the primary transfer. Rikka decides to ask her class consultant Shinka Nibutani for some love recommendation, and she or he advises Rikka get nearer to Yuuta throughout the Christmas season. Following the suggestion of Yuuta’s buddy, Makoto Isshiki, they maintain a Christmas party at Sanae Dekomori’s place.
During the occasion, Yuuta notices Rikka has gone lacking and searches for her. When he finds Rikka, he notices that she is appearing unusual and shortly figures out that she and Sanae are each drunk! How will this Christmas party turn out for the budding couple?
