When a stray dog finds a snake amidst some garbage, the snake enters the dog. When a little girl named Rachel then finds the dog, the snake enters Rachel. Rachel’s mother notices her daughter acting strange all evening, and that night, she wakes up to find Rachel at her bedside staring at her with an evil eye. This causes Rachel’s mother to scream and wake up Rachel’s father, but Rachel is now crying on their bed, talking about some scary snake in a nightmare. The father lets Rachel sleep with them, and the next morning, she appears back to normal. When a spider suddenly appears in the kitchen though, Rachel crushes it with her hand and comments on how Arachne already noticed. Rachel then tells her mother that she’s going out to play with an important friend, and when her mother stops her and demands to know who she is, Medusa reverts back to her true voice for a moment to comment on how good of a girl Rachel is and how easy she is to handle. Medusa disappears shortly after leaving the house. Over at Shibusen, Stein has decided to teach his students some techniques to fight against Arachne and her organization. He gathers Ox, Harvar, Maka, Soul, and Black*Star without Tsubaki to show them on how to do a team version of the resonance of souls, but first he instructs them all attack him. This goes poorly for the students because each of their attacks gets in the way of someone else. Maka ends up nailing Black*Star in the face as she tries to swing Soul around and Ox fries both Maka and Black*Star. Black*Star even punches Ox in the face in what was supposed to be a lesson about teamplay. Elsewhere in the school, Sid and Nygus bring a part of the Eibon’s book they found at Arachne’s research facility to Shinigami-sama’s secret vault at his request. At around the same time, Arachne is watching Mosquito and Giriko argue and fight when one of her underlings brings news of her younger sister arriving. Medusa by now has more or less returned to her old look, and although she still has the Rachel’s figure, she feels that it’s good for deceiving people. She and her sister exchange pleasantries and talk about how Medusa survived before Arachne questions why Medusa came. Arachne still carries a grudge for how Medusa betrayed her 800 years ago during the battle with the Shinigami that led to Arachne’s miserable death. Medusa claims to want to get along, but Arachne has Giriko, Mifune, and Mosquito surround her, so Medusa leaves. The underling who escorts Medusa out is actually Eruka in disguise, and Medusa has her observing the place. Medusa’s own plan for now involves heading to Death City for something important that was left behind.
Elenco: Chiaki Omigawa , Kouki Uchiyama , Yumiko Kobayashi , Kaori Nazuka , Mamoru Miyano , Maaya Sakamoto , Akeno Watanabe , Rikiya Koyama , Narumi Takahira , Houko Kuwashima , Masafumi Kimura , Tôru Ôkawa , Misato Fukuen , Mayuki Makiguchi , Takashi Inagaki , Nobutoshi Canna , Keiji Himeno , Hiroyuki Yoshino , Chieko Honda , Michiko Neya .