Jin is an elementary schooler who got himself transported in another world, Delvaea. Despite being transported, he has no past memories. He lived in an orphanage and soon discovered he's adept to magic. Magic casters are rare, always treated special and is enrolled at a prestigious Mage Academy, but in the case of Jin who is now named Grey, he is discriminated due to his orphan background and didn't managed to enter the said academy. He set out and started his own adventure to prove himself worthy of being a mage, and in his journey awaits new bonds, friendships and love, that he never expected.