Zatch Bell!

The team enter Faudo through his mouth with the help of Ponygon and Karudio. They follow a blood vessel to the spinal cord where they take an elevator and arrive in a room where multiple paths present themselves. The team then splits into two, Kiyo's team consists of Kiyo, Zatch, Li-en, Wonrei, Megumi, Tia, Alishie, and Riya while Arth's team consists of Arth, Ellie, Sauza, Kardio, Sunbeam, Ponygon, Folgore, Kanchome, Elle, and Momon. Elsewhere, Zeno and Dufort in an unknown location of Faudo's, watches the teams infiltration of Faudo.