When the outside was dyed in Christmas colors. Yuuri, who is leaving school with Tsukasa, consults with Natsume about wanting to get along. Natsume, who unusually appeared there to pick her up, confessed that she wanted to give her gift to Lilith, who took care of her, and Yuri proposed to hold a surprise party with Natsume. Tsukasa and Fujisaki also work together to carry out a lively surprise operation against Lilith, but of course nothing happens...