| NAME | Haruka Narisawa |
|---|---|
| AGE | 13 |
| PRIZE | The Asahi Chugakusei Weekly Prize |
| COMMENTARY | A machine for returning materials back to their natural state is designed for each house. These machines have filtering devices to clean waste water and return the clean water to rivers. Discarded food is turned into fertilizer and dispersed into fields automatically, and rain water is stored and sprinkled onto fields. |