水神の生贄 (Series) favorite_border

[DeepL Translation - needs review] Introduction to Volume 1: Arisayo is suddenly pulled into a different world from her peaceful daily life. She is rescued by Suiharyu, the son of a powerful Mura family, but Suiharyu's mother drowns her in a lake as a sacrifice to the water god...! Yusayo is made to promise to become the wife of the merciless water god...! Such a young child is foolish. Fine, I'll make you my wife." The girl's strange destiny is now set in motion...

(Translator: DeepL)