Kallania, a land of magic and wealth until 1 year ago when an earthquake opened a mysterious portal. From this portal, violent monsters invade. They destroy towns and eat everyone in their path. Nothing seems to stem the tide until a rogue Sorcerer manages to summon and capture a monster of his own. After a decree from the King many join the race to summon their own Contracts including Kira a young girl from one of the kingdoms outermost towns, with aspirations to become a sorcerer herself.