Pipiko as known as "Pipi" was the first Tsundere in an anime show called "Triton of the Sea (Umi no Toriton) in 1972" was published by Osamu Tezuka.
She was found in Northern sea in a cool place. She wanted to become the queen of the Northen sea because she was the last mermaid
(Actually she still a badass Tsundere mermaid! xD ).
She's not very polite to ...