While spending the day with her, Yuki tells Momo about her previous mentor, Nagaho Fujibayashi, who taught her to love Sorasaki. Two years ago, as Tsukikage was tasked with stopping Moryo from hijacking satellites from around the world, Nagaho lost her life protecting Yuki from the Sparrow Woman, Kurara Tendo, leaving Yuki with a determination to not let the same happen to Momo. Helping Yuki with her investigation, Momo notices a woman whose face is always kept hidden from security cameras, which they manage to identify as Tendo herself.