Chui Chik attempts to lead a quiet life for a librarian. However, he’s a former test topic for an extremely secretive supersoldier project along with also the teacher of a special commando unit dubbed “701.” Even the 701 team is employed for many authorities assignments, but once one of those representatives interrupts a group of policemen in an uncontrollable anger, the government makes the decision to abort the job and remove all of the topics. Chui Chik assisted the living 701 agents flee the extermination effort. Having escaped, Chui Chik went different ways out of his group. Afterwards, he finds that the remainder of the staff were in charge of a brutal crime spree which has been beyond the capacity of the local authorities. He sets out to prevent themdonning a disguise and employing the superhero alias of all “Black Mask”. Getting lost the capacity to sense pain because of this operation done in the super-soldiers by the army, Black Mask is virtually invulnerable.