The story of Eternia is well known in Neo-Monster Island. Long ago, she worked as the school nurse at Daikaiju High. She enjoyed her job, especially during her "routine examinations" of the students. But all that changed after rumors spread concerning a sexual relationship between her and one of the students (her adoptive daughter Gigi). The scandal became so huge that Enia had no choice but to flee to parts unknown in order to protect Gigi.

...At least, thats what everyone thinks really happened...

The truth was, Enia had returned to her home in Infant Island in order to fulfill some unknown mission, and she merely blew up the "scandal" to epic proportions as cover for her true intentions. However, she had been watching her daughters Gigi and Zuki from afar, hoping for the day when she would reunite with them. Much to Enia's happiness, her mission is nearly complete, and she has managed to finally find the free time to pay occasional visits to Neo-Monster Island.

While Enia may seem like a nymphomaniac even amongst other K-Girls, deep down, she is a caring, motherly figure who loves her two daughters with all her heart and soul. However, that hasn't stopped her urges of flirting with other girls on occasion. There are also rumors that she is a narcoleptic, though these rumors have neither been confirmed nor denied.