Across the heavens, I am the Avatar Sword Master

Introduction: Chen Yu, he has many identities. He is a gamer and a student at Hogwarts. He is Tony Stark's savior and is honored as the Second Supreme by the magicians of Karma Taj. He is the victor of the Fifth Holy Grail War and the student and biggest patron of El-Melloi II. I got three unforgivable curses at the beginning and almost entered Slytherin. His biggest dream is to explore the magical mysteries of different worlds. What he wanted to do most was to fire an Avada Kedavra cannon at the enemy. "Attention, attention! Everyone look over and look like me. I want to announce something!" "I, Chen Yu, the Sword Master of Avada