Due to his appearance Yuuya is bullied and neglected. After helping a pretty girl being harassed, Yuuya finds inside a room of the house he inherited from his grandfather a hidden door portal to a magical land, Argena, where he obtains powers that totally change him. Then the girl he helped, Kaori, helps Yuuya enroll in the prestigious Osei academy where he makes friends. Yuuya enjoys his new life with Kaori and his friends, while during his visits to Argena he encounters people and gains more powers and abilities.
