雨の日の遊び場：水たまり、排水、そして強制的な動線

Render a school sports ground during heavy rain, showing how the ground fails and copes. Show the polyurethane track wet and darkened to a deep brick tone, water sheeting across it and collecting in a broad shallow puddle at one bend where the surface has settled, reflecting the grey sky. Detail the infield grass as saturated with standing water in the low centre and mud showing through at the worn goalmouth. Show the perimeter drainage channel running full, with a leaf-blocked grating and water backing up around it. Detail the covered walkway along one side as crowded with students sheltering, bags on the floor, a queue at the door. Show a groundskeeper in a raincoat lifting the grating with a hook. Include rain visibly falling — streaks against the dark trees, drips off the walkway edge in a continuous line, spray bouncing off the track. Keep the light flat and dim with everything desaturated except the track's red. Photorealistic, wet, grey and atmospheric, eye-level view from the walkway.