A Man Slaying a Monster Carp with a Sword

A man wearing a red and gold top with a white patterned undergarment rides on top of a large koi fish in water. The man has dark hair and holds a sword with both hands. The fish has dark brown scales, a beige underbelly, and a large eye with a pink iris. The background features swirling waves depicted in shades of gray and gold. A peach-colored rectangle with black Japanese characters floats on the top left. A smaller blue rectangle with red Japanese characters is near the bottom left.