湾岸露天古代海水の湯

From Author Wars - https://authorwars.com/books/wan-an-lu-tian--gu-dai-hai-shui-notang-2462325.html

Overview:

Title: 湾岸露天古代海水の湯
Author: 日々花長春
Year: 2016
Type: Novels
Series: 異世界混浴物語 / Mixed Bathing in Another Dimension
Number in Series: 4

Variant Titles:

2017. The Ancient Seawater Baths

Genres/Themes:

young-adult fantasy