As alix kubdel and fluff search for an antidote in underwater, they find a shining underwater castle where shellia used to lived there.

Alix kubdel: wow, I never been to a mermaid kingdom before, let's check it out!

Fluff: ok!

Alix kubdel and fluff entered the underwater castle and meet up with grilso that they meet in seahorsingham.

Grilso: alix, fluff! You can't believe this!

Alix kubdel: what is it, grilso?

Grilso: it's a mermaid kingdom, you guys! Princess Shellia used to live there before turning against me! It all started back in 1 year and 9 months or 2 years after you became our protectors of moto-metro, me and Starie are really good friends when we used to work for the sea king durning her  childhood. The sea king was holding a concert in his name, performed by shellia and his crab court composer durning the nighttimes in moto-metro. Until one sadden day, the sea king died from cancer in his throne. Me and Starie hosted a funeral of our old boss in the mermaid kingdom...expect for shellia who wasn't happy about the funeral of her father was happening, so she decided to turn against us for causing her father's death. She easily captured the rest of civilians of the mermaid kingdom, but luckily, me and Starie managed to escape the beginning of her tyranny, but we got separated into different dimensions, Starie was separated in a moto-metro miracle box and I was separated in a new dimension called seahorsingham. Then I became very sad, because I didn't get to see my friend, Starie again...

Alix kubdel: don't worry grilso, we will find your kwami friend Starie in no time, but first me and fluff had to find the antidote to change me back into a human!

Grilso: thanks, I really appreciate your help! Meet me at the shore when you get the antidote!

Fluff: ok!

Alix kubdel and fluff move to the next underwater location to continue to find the antidote.