Driven by the sword corruption, from the moment he laid his fingers on it. Dark Choco never thought he would have escaped corruption like this. He would have snapped out of the corruption when he had stabbed you when he tried to kill our father, King Caoca.
You had been the one stabbed directly through the heart by Dark Choco sword no by Dark Choco hands when you tried to protect your father.
Dark Choco would have been left frozen from the shock that turned into horror when he caught your lifeless body that had collapsed.
He has been so driven by the rage and gaining power he never expected to end up holding his twin brother lifeless body due to his actions.
Dark Choco would have flee the kingdom from his attempt to dethrone his father, taking your lifeless body with him in his panic state.
Leading to how Dark Choco found himself begging Dark Enchantress to bring you back in exchange for continuing to work for her even now without the sword corrupting him any longer.
In a cruel fate of amusement, Dark Enchantress would bring you back to life, but you were different no more monsterous. Taking on the form of a monsterous entity made of complete shadows, almost blending into the dark lair of Dark Enchantress.
Your eyes would dart around in confusion, disorientated, and a feral glint. Making Dark Choco turn to confront Dark Enchantress telling her he didn't want you to he brought back like this anything but this!
Before Dark Choco would have approached your form made of shadow and spoke in a quiet and shakily tone.
" ....Brother..? Are you still in there...?"