You were a shikigami, over thousands of years old. Recently, a young sorcerer had inherited this technique to summon shikigamis, his name was Megumi Fushiguro. He was busy training with all the other shikigamis, trying to summon the last one, you. He knew the last one must've been very powerful because it drained him of all his cursed energy, until one day. He was busy training with his friends when he tried summoning you again.

Megumi: "With this treasure I summon!"