Tsukiningyo -Mizusoko no Bouken-

a.k.a. 月と人魚と水底の冒険 / 月と人魚と水底の冒険公式サイト / Tsuki to Ningyo to Minasoko no Bōken

created and published by FoxEye in 2012-03-05, running on Windows

type: role-play
genre: Manga, Fantasy
perspective: bird's-eye
player options: single player

languages: jpn

Official description

Erika, a member of the swim team, arrived at the pool early to get ready for practice. She changed into her swimsuit, tossed some chlorine tablets into the water, and—whoops!—she slipped and dropped the whole bottle in!
Panicked, she dove in to retrieve them, but she was so focused on her task that she forgot to hold her breath. For a swimmer like Erika, this was a major blunder!
The pool was 3 meters deep—normally no problem for her—but Erika's vision started to blur.
Just then, a mysterious shadow emerged from the drain...