Mio Kurokawa, fifteen years old, is a descendant of a declining conjurer family. Her ability is "engraving" - touching the target with your hand can set a rule for the other party.
Once a rule is established, there is a price to pay for breaking it.
Sounds strong, right?
But the price is that she is fragile and weak, and she has to hold on to the wall to catch her breath even after running 800 meters.
After being half-coaxed and half-deceived by Gojo Satoru and taken into a magic high school, Kurokawa Mio originally just wanted to be a troubled student.
As a result, Knotweed Hisahito pestered her every day and asked, "Can you give me a rule so that I won't get lost?"; Kugizaki Wild Rose said seriously, "You will be my partner in complaining from now on." Fushiguro Megumi looked at her and said, "Don't hold back in the battle."
Kurokawa Mio: "... Is it still too late for me to transfer to another school?"
Gojo Satoru: "It's too late."
There is no system, no plug-ins, only the marking ability to touch whoever is unlucky.
Between the curse master and the curse spirit, Kurokawa Mio decided to set a rule for herself first:
Never die.