As the scars of the 'Dragon War' continue to plague the lands since ancient times, the isolated 'Hiver' kingdom is trapped in an unnaturally long 'Winter'.

Because of the kingdoms natural environment and isolated location, 'Hiver' has been able to maintain peace for a long time.

Princess Sofia, the heir to the throne, I's worried about her inexperience and wishes to go to the outside world to get to know more about her people's way of living, while concealing her royal heritage.

The protagonist, a Knight of Imperial Guard, petitions the king for the princess sake and his majesty graciously permits Sofia to go to the "Canary Kindergarten" as a teacher under the protagonist's protection.