In this town's lake, a man-eating mermaid is said to have been sunk to the bottom. Today, the mermaid still wanders the town in search of a companion, stirring up the restless hearts of the people. A modern day tale of foolish girls who can't survive in clear water.
There, Beneath the Water is a completed manga by Fuyumushi Kaiko, first published in 2021. It blends psychological, girls' love, drama and horror. You can read all 12 available chapters of There, Beneath the Water online for free on MangaPulse; the newest is Chapter 11, added 2026-04-03. The series is finished, so you can read it from start to end in one go.