It's summer vacation! Let's gather, everyone! is the 68 episode of the series and is the 16 episode of season Pure.
In order for Maki's beach house to complete with a nearby hotel, Lucia, Hanon, and Rina hire Karen, Noel, and Coco to help them in their chores. The six mermaid princesses engaged in a beach volleyball match against some guests of the hotel.
While making their beach volleyball comback the 6 mermaid princesses have names for their attacks:
Coco's and Noel's
- Ice and Steel Wall of Perfection!Block!
Hanon's with Rina's and Karen's help
- Tornado Serve!
Karen's with Rina's help
- Blizzard Revolution Receive!
- Hailstorm Toss!
- Southern Ocean Hurricane Attack!