Strike the Blood Episode 16 English Subbed Episode Title:Fiesta for the Observers I.Episode Description:Nagisa's body is possessed by the 12th familiar and after delivering a warning to Vatler, returned to her mother Mimori. After waking from her nap, Asagi walks the streets during the festival where she acquires guardianship of a small child who can only be Natsuki. Aya Tokoyogi tears her daughter Yuuma's guardian spirit away from her. Holding up another grimoire, she explains to Kojo and Yukina how she cursed Natsuki, which partially opened the prison. The six worst inmates appear behind her and explain that until they kill the witch, they'll never be free of the prison system and that should their power or stamina fall too low, they will be re-imprisoned automatically. One inmate demonstrates upon another, who is returned. Sayaka races up with a motorized cart and they scoop up the fallen Yuuma and flee. Asagi cares for her new ward who has lost her memories to Aya's curse. Kojo leads the others to his mother's research facility where everyone has fun and Sayaka attempts to seduce Kojo hoping to heal him.