He acts as a first year in Jujstu High where they train sorcery to use their abilities at there max potential so they can learn on how to exorcise a curse spirt. His goal is he wants to exorcise the curse spirit that is causing his sister Tsumiki to be in the coma. He is not only first year amongst his classmates. he is also brought by Itadori Yuji and Nobara Kujisaki who they hang with each other as a trio.