Heading to the other end of Mandarin Island, Ash and his friends discover there's a monster in the sewer that is causing lots of problems in the town. When the Mayor wants to blow it up, Joy protests and asks Ash and company to help.
| Creator | N/A |
|---|---|
| Actor | Rica Matsumoto, Ikue Otani, Daiki Yamashita |
| Country | Japan |
| Production | Shogakukan Production |