Shizuka, a college student, is recruited by a group named the "Japan Salvation Conference" for a mission. She and her pals leave their astral bodies and head for the spirit world to face the Great Demon of Hades that aims to destroy Japan.

At 7:07PM, the occult club members hold a ritual ceremony to summon “Master Salt” who is a divine protector. One after another, people ask Master Salt for help. What will Master Salt and the girls encounter in the battle against a powerful enemy?

Sayuri, a coffee shop waitress, uses her supernatural powers to help those who are troubled by spiritual phenomena. She gradually gets involved in serious matters, eventually facing a fierce battle with the devil.