A medium shot, eye-level anime illustration depicts Kaisei from Nijisanji as a zombie, standing alone in a desolate environment. He has a sickly, greenish-tinted skin tone and is covered in numerous jagged wounds and scars across his face and exposed skin. His expression is vacant and glazed, with a hollow stare. He wears his characteristic attire, now tattered and stained with grime and blood, with his hands hanging limply at his sides, fingers slightly curled and stiff. The background is a ruined urban landscape with cracked concrete, rubble, and a hazy, overcast sky. The lighting is dim and cold, with a muted color palette dominated by grey and pale green, creating a grim, eerie, and melancholic atmosphere with a high level of detail on the decaying textures of his skin and clothing.