Astyanax

The story follows a young 16 years old boy who is suddenly transported into a different reality (dimension) while walking to school. He appears in the kingdom of Remlia and meets a fairy named Cutie. She tells him that Rosebud, the princess of the kingdom, has been abducted by an evil wizard called Blackhorn and asks him for a help. He agrees and together they set off for the castle where Rosebud is being held.