The Water Dragon's Bride(2015)

Suijin no Hanayome

In the blink of an eye, a modern-day girl named Asahi is whisked away from her warm and happy home and stranded in a strange and mysterious world where she meets a water dragon god!

A young boy named Subaru comes to Asahi's aid, but despite his help, Asahi must endure a test of survival! Will she be able to make it out alive, or will she end up being sacrificed?

(Source: Viz Media)

Note: Includes one extra chapter.