She, a modern hidden ghost leader of an organization which gathered insane prodigies proficient in the various differing skill-sets. Highly skilled in medicine and poison, executes covert assassinations, viewed as insane and demonic in the eyes of people of the world. Killed in an accident, and reborn into the body of a disfigured young girl. What? Face disfigured, identity stolen? A return to the family dim and hopeless? Her identity can be given up, her family can be forgone, but as for the one who harmed her predecessor who inhabited this same body, if she didn’t at least make them scream in unimaginable agony and throw them into a state of wretchedness, how could she live up to her demonic reputation? Endless turmoil ensues and it’s a battle to dominate over all! See how she shook the world dressed in a suit of red, her sword up against the dominant powers that rocked the Heavens! Her name spread across the seas, shocking the earth!
I don't even know what to say here. first the novel is a translation or written by someone who knows nothing of marvel comics or cinematic universe. secondly the paragraph sentences in the novel are all over the place, a lot of events seems to be compacted into few sentences or straight up words, for eg. 1. in the start how mc converses with the terrorist. you see in canon terrorist didn't know who was there target and just kwen to kill everybody on the convoys, it was after the attack did they realise their target was Tony stark. 2 Tony convinces the cave doctor in few words. if your are trying to write a plot driven fanfiction then the execution doens't feel right.