かみねぐしまい (Series) favorite_border

[DeepL Translation - needs review] Introduction to Volume 1: The Sakaki sisters save a girl from drowning in a river. The girl claims to be a god and says she will grant them a wish in return! 　However, they can only grant one wish. There are two Sakaki sisters. The battle for the sisters' favorites is about to begin to see who can make their wish come true!

(Translator: DeepL)