Durch seine großspurige Prahlerei im Wirtshaus, die zufällig belauscht wurde, hat er nun jedoch Amira am Hacken: Sie verlangt von ihm, dass er sie ins sagenumwobene Helheim bringt. Und um ihn dauerhaft an sein Versprechen zu erinnern, hat sie ihn mit einem Zauber belegt: Favaro trägt nun weithin sichtbar einen Teufelsschwanz. Blöd ist nur, dass Favaro den Weg nach Helheim gar nicht kennt.
Bewildered at suddenly having a tail Favaro tries to cut it off. After no success the mysterious woman from the night before appears, declaring she placed a spell on Favaro; until Favaro tells her the shortcut to Helhiem, she will not undo the spell as it is a contract. Since Favaro lied he declares he has to show the woman the way and they leave town. Later in town the Knights of Jeanne D'Arc appear, declaring they are searching for a demon. Kaiser, thinking it to be Favaro, declares he will capture and deliver it as he is a knight himself. He is quickly dismissed due to his bounty hunter band though he protests he was forced to become one after his family fell to ruin, something he blames Favaro for. With Favaro the demon woman, named Amira, she is looking for her mother who is in Helhiem. As Favaro contemplates killing Amira to free himself of the spell Kaisar appears, declaring Favaro a demon and guilty of kidnapping Amira, only to be knocked out by Favaro and the two escape again. In the next town the Knights appear, saying they're looking for a female demon with one wing; Favaro who is alone seizes his chance by selling out Amira. The Knights chase Amira while Favaro hopes them killing her will release the spell. However he is forced back together with Amira; seeing she's unharmed the two run from the knights who chase them to a bridge. The two tumble down into the river below and out of the knights' sight. Amira then asks Favaro if he is a liar and he protests, asking if his face looks that of a liar only to make a goofy devious expression.
À son réveil, Favaro découvre qu'il est affublé d'un nouvel appendice et qu'il n'est plus humain. Il est désormais obligé d'aider sa sauveuse, Amira, qui cherche sa mère.
悪魔の尻尾が生えてしまったファバロ。それは、ヘルヘイムへの近道を教えてもらう代わりにとアーミラがした口づけ、つまりは契約の魔法のせいだった。近道を教えれば、その魔法を解くと言うアーミラ。近道など知らないファバロは、アーミラの隙を狙って元の体を取り戻そうとするのだが……。
봉인되어있던 열쇠가 도둑맞았다는 사실을 알게 된 신족은 인간을 시켜 수색에 나선다. 한편 파바로는 자신을 악마로 만들어버린 아미라를 어떻게 처리할까 고민하는데.
Favaro intenta todo lo posible para eliminar su cola de demonio recién adquirida. Mientras tanto, una banda de élite de caballeros es enviada a recuperar la llave de Dios que Amira tiene en su poder.