Christmas has come and gone, and the new year has come around filled with the hopes and dreams of many. Only, Shun hasn’t come home for the holidays, and Saemi has had enough of her illusive brother. She takes it upon herself to bring him home, after going to get him at the school.
After searching around a bit, Saemi encounters Yukino and Hisame. She finally drags Shun home, as well as Yukino, for no one should be alone on New Years. Yukino discovers that there is much missing in her life as she interacts with Saemi. What other discoveries will the new year bring.
Voici qu'arrivent les vacances de Noël pour les étudiants, mais pas pour nos Gate Keepers, car les Envahisseurs, eux, ne prennent pas de vacances! La petite soeur de Shun va tout faire pour que les Gate Keepers passent des fêtes de fin d'année dignes de ce nom...