At 7:07 PM, the occult club members are holding a ritual ceremony to summon "Master Salt" in Kamono Girls' High School in Tokyo, to help one of the members, Nanako, who has been struck by mysterious incidents.

At 7:07 PM, the occult club members are holding a ritual ceremony to summon "Master Salt" in Kamono Girls' High School in Tokyo, to help one of the members, Nanako, who has been struck by mysterious incidents. They draw a pentagon and a circle with purified salt, and burn a sealed envelope with a written wish. Out of nowhere, a mysterious woman in a hakama appears with a blast of wind. It is the divine protector, Master Salt. She sees through the identity of the spirit that cursed Nanako and repels the curse. After that event, Nanako and her friends ask Master Salt to repel the curses that bring misery to people. They discover that this world is full of people who curse others - a man who swindles the elderly out of their money, a businessman who commits domestic violence, and a university professor who denies the students' spiritual beliefs and suppresses the students by threatening to flunk them. One after another, people ask Master Salt for help. The occult club members eventually find out the secret scandal of the son and the successor of a renowned company, Tendo Group. What will Master Salt and the girls encounter in the battle against a powerful enemy?