Once the battle with Ragna and Noel ends, a boy has appeared out of nowhere looking for her. His name was Jin Kisaragi, the mayor of the NOL whose mission to take down Noel. Right after the battle with Jin and Noel ends, Jin is making amends of becoming a defender of Kagutsuchi. Jin and Noel go out to find out the plan of the talented Black Beast, a sacred creature that can use as many Ars Magus using it to suck up the seithr. There was a strange person with assistants here in Ronin Gai in Ikaruga. His name was Bang Shishigami and he got his 3 assistants. Bang told his assistants about becoming a defender of Kagutsuchi and making amends. His assistants hired Bang as a defender of Kagutsuchi and he's ready to go.