This is my favorite Kappy Mikey episode ever. I find it adorable. Not to mention I adore kappas. After an accident in LilyMu Studios, the group winds up at a river. Ozu, being the wise old Japanese man he is, makes an offering to the kappa. Mikey, being egotistical, says that the kappa should be called Mikey Kappas since he's famous.
The girls are separated from the guys due to Mikey's poor ability to read a map, which gets their boat caught up in rapids. The guys get angry with Mikey for fishing, for eggs, and he leaves.
Only to be caught by the kappa. They do not believe he's Kappy Mikey. After all, he's tall, kappa short. He's pink, kappa green. He's ugly, kappa beautiful!
Thanks to Mikey, a shiny ding-dong (drink can) is blocking the water's path to their basin, which causes them to weaken. He grabs one and takes the fishing pole, using it to take the shiny ding-dong and clear the path to their basin yet again.
He wishes to stay with the kappa, but since the kappa LOVE LilyMu they ask him to go back. He meets back up with the others, who have found the girls, and they go back to LilyMy Studios to do the scene they were doing at the start right this time, as they normally do.