Lin Mo, an extremely ordinary convenience store worker, suddenly got a white leather case one day - with a cracked timer and crooked corners, it looked like a defective prop from an outdated tokusatsu drama.
But wearing it, he can fight monsters.
Take it off and the monster will freeze.
Those three seconds of being stunned were the time for Lin Mo's "Law of Pretending" to take effect - as long as he was not embarrassed, he would be a monster if he was embarrassed. And once the monster is embarrassed, its flaws will be revealed and it will die.