The world fell into peace after The 4 created a sworn oath to protect each other from dangers. This sworn oath has never been broken for 365 years and now, Emily Shu, a regular human, lives among demons, angels, creatures of magic, and other humans. Wishing to become a freelance artists while traveling the world, her world started to fall apart when a mysterious disease started to spread like rapid fire. Even the most powerful beings, the demons, angels, and the creatures of magic were being affected as well. What will Emily do? Protect her family or save the world?