Persona 5-inspired pop-art anime poster for a custom chuunibyou character

The background does not need realistic perspective space; it should be a flat visual collage stage filled with huge sans-serif English letters, torn paper effects, ink splatters, bold arrow graphics, speech bubbles, and onomatopoeia, such as exaggerated "BOOM", "SLASH", or "WAKE UP" graffiti sound effects. You can integrate UI elements into the scene—health bars, skill names, buttons, numbers, tooltips—floating around the main character, as if the game interface and the illustration have merged, breaking the fourth wall.