Definition: In this task, five ordered key facts are given. All the given facts are expressed in natural language. Your job is to generate a story 100 to 1000 words long, that includes all the facts given as input in their order of appearance while expanding upon them to produce a broader, yet coherent, narrative.
Input: Fact1: Tsui Chik or Simon in US version lead quiet life as librarian, Fact2: government decides to abort project, Fact3: rest of team were responsible for violent crime spree, Fact4: violent crime spree was beyond capability of local police, Fact5: Black Mask is invulnerable Having lost ability to feel pain due to surgery performed on super-soldiers by military

Tsui Chik or Simon in the US version tries to lead a quiet life as a librarian. However, he is really a former test subject for a highly secretive supersoldier project and the instructor of a special commando unit dubbed 701. The 701 squad is used for many government missions, but after one of the agents kills a team of policemen in an uncontrollable rage, the government decides to abort the project and eliminate all the subjects. Tsui Chik helped the surviving 701 agents flee the extermination attempt. Having escaped, Tsui Chik went separate ways from his team and lived in Hong Kong. Later at night he discovers that the rest of the team were responsible for a violent crime spree that was beyond the capability of the local police. He sets out to get rid of them, donning a mask and hat using the superhero alias of The Black Mask. Having lost the ability to feel pain due to the surgery performed on the supersoldiers by the military, Black Mask is almost invulnerable.