Mermaid Gongnyeonim

"It is said that mermaids' tears become mysterious jewels." Aisha is a girl who has never cried, despite the bullying she has faced. The day she escapes from her village, she becomes a mermaid. And the Empire's only duke, Archduke Hayden Elykin, arrives. "We are family, Aisha Elykin." Life changes overnight. Hayden treats Aisha with kindness, saying that she is his lost sister, but the truth is clear... Can Aisha learn to balance her life as a mysterious mermaid with that of a glamorous princess, even if she knows Hayden's secret? Is it Aisha or Hayden who sheds tears of jewels? (Source: KakaoPage, translated)