Unable to discover the secret to reaching Level 6, Hishigata tries a new approach by recruiting Esther Rosenthal, a necromancer. Esther and Hishigata's sister, Hirumi, become fast friends, but Hirumi's secret may jeopardize that friendship.
A promise, made between me and Esther.
.وعد، قُطع بيني وبين إستر
Ein Versprechen nur zwischen mir und dir.
Une promesse entre toi et moi.
Un promessa...
É uma promessa, só entre nós duas!
Это клятва.
Наша с тобой личная.