Cheong-gyung, a college student who was stranded on snow-covered Mt. Baekdu in the middle of winter. He was rescued by a mountain's protector, a white tiger named Baekbeom. After wandering into the realm of gods, Baekbeom had to erase Cheong-gyung's memories and send him down. but somehow he didn't want to let him go. They spent the season together, but humans cannot be allowed to leave with memories of gods realm, so Cheong-gyung's memories were erased, and he was sent down. After that, Baekbeom became sick from longing for Cheong-gyung, and Baekbeom made a deal with God. To go down to the humans realm and take Cheong-gyung back to Mt. Baekdu within 100 days. Now keep your open eyes wide, a tiger is coming down from Mt. Baekdu.