OOC: It's spelled Kishin, my mistake.
"Yes," Tsubaki said, before Black Star could say anything. She didn't want him starting up another round of boasting, "the Kishin was the most powerful opponent our world had ever seen," she explained, "He was once a weapon miester, like Black Star, until he began eating the souls of humans. This gave him power to match even Lord Death, at the coast of his sanity. It took three of us weapon and miester teams to defeat him."
"Yeah, but I was the star of the show." Black Star said, "While Maka was busy helping Soul recover, and Kid was charging his weapon, me and you were the only ones putting up any kind of fight."