A mysterious creature has fallen from the sky and landed right at young Yuina's feet! Branded as the master of this new angelic being, Yuina is forced into an otherworldly pact, one that will take her beyond...

London 2000. A student who lives happily with his beloved cat Tom Toffee. However, sudden misfortune attacked her, and her peaceful daily life was taken away. An epic adventure that transcends time and space...