Well, it all starts with a tragic event. Harvey Dent gets exposed to some dangerous chemicals or has a traumatic incident that horribly scars half of his face. This physical trauma messes with his mind, causing him to develop a dual personality - the good Harvey Dent and the villainous Two-Face.
Harvey Dent was scarred on one side of his face during an accident, which led to his split personality and transformation into Two-Face. The trauma and disfigurement messed with his mind.
One of the best is 'The Long Halloween'. It shows the complex relationship between Batman and Two - Face. Harvey Dent's transformation into Two - Face is a key part of the story, with his struggle between good and evil being really well - portrayed.
The atmosphere in these stories is often dark and gritty, which suits the characters well. The art styles in these comics enhance this mood. In 'Batman: Face the Face', the art and the writing work together to create a sense of tension and hope as Two - Face attempts to start anew, but is constantly haunted by his past.
The 'Face the Face' storyline is excellent. It shows Two - Face's return and his attempts to re - establish himself in Gotham's criminal underworld. His interactions with Batman are intense as Batman tries to figure out how to deal with his old friend - turned - foe. Another top story is 'A Lonely Place of Dying'. Here, Two - Face is part of the complex web of events that tests Batman both physically and mentally.
The 'Long Halloween' is definitely one of the top. It delves deep into Two - Face's psyche. His coin - flipping motif is really emphasized, and how it dictates his actions, whether good or bad. 'Dark Victory' is also great. It shows how he manipulates situations in Gotham, and his relationship with Batman is complex. 'Batman: Year One' is important as it shows his origin as Harvey Dent before the accident that turned him into Two - Face.
The story often involves Two - Face creating chaos in Arkham City. He sets up elaborate schemes that are based on his idea of 'justice' which is warped by his split personality. Batman has to figure out how to stop him without causing more harm to the already chaotic Arkham City. This includes tracking Two - Face down in his various hideouts and dealing with the traps and henchmen he has set up along the way. It also delves into the backstory of Two - Face, how he became the way he is, which gives more depth to his character and the overall story.
The main characters are Batman and Two - Face. Batman is the hero who tries to maintain order and justice in Arkham City. Two - Face is the villain with his split - personality causing trouble.