When their kingdom becomes trapped in perpetual winter, fearless Prince Yuuichirou joins forces with mountaineer Mitsuba to find Yuu's childhood friend, Snow King Mikaela, and break his icy spell. Although their epic journey leads them to encounters with mystical witches, harsh conditions, and magic at every turn, Yuu and Mitsuba bravely push onward in a race to save their kingdom from winter's cold grip.