Hoshimiya Eiji receives orders from Kunou Mari, the Ninth Hand of Dazaifu Government Office's Group of Ten, to invade Yamaguchi and conquer it for themselves. While he makes it into Yamaguchi with Kurenai Rin, he falls into danger partway through. Saving Eiji and Rin is the Group of Ten's Fourth Hand, Iyo. Then she reveals their secrets.
I am the Fourth Hand of the Group of Ten,
،أنا اليدُ الرّابعة لمجموعة العشرة
Ich bin die Vierte Hand
Soy la cuarta mano del Grupo de Diez,
Soy la cuarta mano del Grupo de Diez,
Je suis la quatrième main
du groupe des dix.
Sono la Quarta Mano del gruppo delle Dieci Mani.
Eu sou a Quarta Mão do Grupo de Dez,