A close up of a person in a red suit with a gun

Create an anime-style poster using the Niji model. The character is a young, fiery hero with spiky, explosive hair and fierce, determined eyes. He is wearing a futuristic suit of armor and striking a dynamic, aggressive pose. His expression is intense, as if he's shouting a battle cry. The background is a cityscape in the midst of an epic battle, with explosions lighting up the sky. The overall style of the poster is reminiscent of shonen anime, with bold lines, dramatic lighting, and a sense of high-stakes action.