A little girl, named Rachel, is taken over by Medusa's snake. She starts to act strange, and eventually leaves her house, much to her mother's despair. Medusa, in her new child form, arrives at Baba Yaga's Castle, the domain of Arachne. However, she is rejected by Arachne, Giriko, and Mosquito. She leaves the castle with a disguised Eruka, swearing to take something she left over at Death City. Meanwhile, Stein is determined to teach his students about duel arts, where they will be able to figure out how to resonate as a team. He volunteers Maka and Soul, Ox and Harvar de Éclair, and Black Star without Tsubaki, only to see them fail at the attempt.