Kurumi Tokisaki attacks a D.E.M. facility and finds the captured Spirit Nia Honjou, codenamed "Sister." Sometime after the most recent events, Shido has been receiving medical checkups from Reine to confirm his health after having to seal the Spirits' magical energy in his body for an extended period of time. While Mana Takamiya gets her own checkup from Kotori, Shido returns home when he runs into Nia starving on the streets. He brings her to her workplace, a manga publishing bullpen, where Nia reveals herself both as a Spirit and as a manga artist. She is already aware of Shido's mission thanks to her Angel, Raziel, which gives her almost unlimited knowledge on the world and humanity. For her own amusement, Nia decides to go on a date with Shido, until she reveals that she has never fallen in love with anything other than characters from fiction.