Satoko Kusagakure, a female ninja who left her village with her comrades, finds herself living with Konoha, a high school girl working as an assassin in the city. Satoko possesses the ability to transform objects using ninjutsu, which catches Konoha's attention. They strike a deal: Konoha provides Satoko with a place to live in exchange for Satoko's help in cleaning up after her assassination jobs. As they face off against assassins sent by Satoko's village, indulge in delicious meals using money earned from assassination jobs, and navigate the chaos of their unusual living situation, the story captures the heartwarming yet chaotic lives of these two unlikely roommates.

School x Supernatural x Mystery. This story takes place before the exorcist Kyougokudou opened up a used bookstore... Our setting is in Tokyo in 1948, just right after the war. Kanna Kusakabe had just become a second-year at a high school when she meets the new language teacher, Akihiko Chuuzenji. Mysterious supernatural things keep happening around Kanna. Once again today, Kanna is going to open the doors to the library prep room to seek help from the surly Chuuzenji-sensei who is waiting inside. A high school supernatural mystery featuring the unlikely duo between a teacher and a high school girl is about to begin!

The eighth recap special of the Egghead arc.