Mermaid SagaMermaid Saga.

Mermaid Saga (Japanese: 人魚シリーズ, Hepburn: Ningyo Shirīzu) is a Japanese manga series written and illustrated by Rumiko Takahashi. It consists of nine stories told in 16 chapters irregularly published in Shogakukan's Shōnen Sunday Zōkan and Weekly Shōnen Sunday from 1984 to 1994. Two of the stories from the series, Mermaid's Forest and Mermaid's Scar, were adapted as original video animations (OVAs) in 1991 and 1993, respectively.