After Fighting Through the Dungeon, I Joined Hogwarts

The busy city life made me tired, so I dug out a letter left by my grandfather. Grandpa once said to me, "Our family is in decline..." I took this letter and set out on the road to save the world. Fortunately, I succeeded, but unfortunately: the awakening of Star Color brought me to a strange place. "Professor Dumbledore, this is why I'm here," said Ryan, sitting on the desk in the Headmaster's office.