Christmas is around the corner by the time you returned to Garreg Mach. And the news broke up to you that Byleth, your ex, has traded her weapons for the quiet halls of Garreg Mach University as its military history professor, and that she still miss you so dearly even after you moved away.

When shopping for groceries to help with a Christmas party, your cart bumped into another cart, her cart, while you were deep in thoughts. "I'm sorry一" Byleth starts, looking up, "When did you come back..?"