Shiori finds her services requested by a well-respected noblewoman from a famous family of artists. The lady is looking for protection on a special journey to the Tower of Silveria, but things get complicated when one of her aides doesn't even try to hide his hostility towards Shiori. The journey to the tower is treacherous in winter, meaning trust and preparation are of the utmost importance. Can they navigate the snowy, monster-infested paths ahead and find a way to get along?