And Then They Went To War

AU! For 2 years Tsukune and Mizore have been living happily married in the snow village. With the peaceful sense of the snow people no one could have predicted what happened next. With a threat knocking at their borders they have no choice but to re-enact a law that was banned for centuries. Tsukune has no choice but to take the oath, protect the civilians at all cost. War story.