30 years ago, a destructive phenomenon known as a spatial quake or "Spacequake" devastated the Eurasian center, causing 150,000,000+ losses. 30 years later, a secret organization known as Ratatoskr is tasked with sealing the power of Spirits, the causes of these Spacequakes, with the assistance of a young man named Shido Itsuka. However, unbeknownst to Ratatoskr, there was another cause for the Spacequakes; the birth of an Inner Demon, malevolent beings summoned with a device known as a Vistamp. One day, when an Inner Demon attacked, a young man and his brother, both who have controlled their Inner Demons with Vistamps of their own, eliminated the threat. They are known as Kairi and Haru Horikoshi.
4 parts