Akazukin Chacha EP39 - Cucumber Rolls in the Dragon Palace

Chacha has been having bad dreams about her parents, where they turn into the Daimaō, but she does not know what they mean. Later that day, they reach the very wide Yonzu River. They can not see any way across, but a ferry comes along (piloted by Haideyansu and Yordas). Partway across the river, Haideyansu and Yordas convince Riiya to pull the plug in the bottom of the boat, and everyone is sucked down into the Dragon Palace (including marin, who tries to rescue Riiya after hearing him drown).

When they regain consciousness, they find they are surrounded by beautiful young girls, who dance for them and present them an amazing feast of all cucumber dishes. After the meal, Shiine is relaxing in a large open bath when he hears some of the girls from earlier talking about them. He takes a peek and sees that they are all kappa, and they are planning to eat Chacha and her friends. Shiine runs back to tell the others but is stopped by Princess Otto, the leader of the kappa. Chacha, Marin, and Riiya run up, and Princess Otto begins attacking them as well. Umibōzu hears Marin's cries for help and attacks Princess Otto. Just when Umibōzu is about to be defeated, Chacha transforms, summons the Phoenix Sword, and defeats Princess Otto.

The explosion from the defeat of Princess Otto throws them back onto the shore where they started, and a rainbow bridge appears across the river. As they turn to go toward it, an ornate box tied with a purple cord appears. Chacha opens it and finds another coin, and they proceed across the rainbow bridge.