Sparks fly in the Nishyama household as step-sibling Sakura and Kaede struggle to (internally) confront their attraction to one another. But before Sakura can puzzle out the meaning behind Kaede's Christmas kiss, his big brother, Aoi, suddenly comes to spend a few days with the Nishyama family! Between that, her New Year's shrine visit with Hatano, and Kaede's fierce overprotectiveness born from his newfound love, Sakura's heart might be pushed to the limits!