Yingjiang Office is a detective agency in the name, but the true meaning of its actual existence is to accept a commission to hunt inhumans - the so-called "inhumans" are monsters with human shapes.
The lazy and unmotivated boss Yingjiang F. Douglas, the fat intelligence agent Ralph with a slightly sinister attribute, the taciturn card assassination user V. I, and the chaotic and energetic working girl Miria.
This is the story that happened around them