- Skull Queens: The Skull Quince Tribe. Cowardly and timid. However, cute, adorable, and kind.

- Mr. Octopus: A member of the Stone Octopus Tribe. He is charismatic and tough. However, he cannot stay on land for more than 5 minutes and must always be submerged in water. He is small compared to his charisma.

[Synopsis]

In the terrifying land of skull quinces

The timid and shy Skull Queens, born like a mutant(?)..

They end up saving Mr. Octopus by chance, and the two become best friends.

Feeling sorry for the insecure Skull Queen, Octopus decides to travel the wider world with her to help her build confidence!

The two of them pack only a pair of underwear and set off into the vast, boundless ocean...

Will the two of them really be able to survive?