Little Flower Fairy: Magical Hades

Legend has it that... Before the world opened, there was still a race that lived in the ocean. Every flower born was called an ocean flower, and the elves born from the ocean flowers were called mermaid flower elves (which have the breath of both flower fairies and elves). There was an ocean goddess who foresaw the energy. Time passed (opening the world), so a secret realm was created to seal the people of this country so that they could survive. Slowly, the energy was slowly consumed. The sea elves received the blessing of the goddess and gained strong adaptability and fell into a deep sleep-until the door to the secret realm was opened. (The main plot in the first season is not very difficult, so I added some branch plots.) (Perhaps the plot will be posted in the second season)