紅き諍い女

Two tribes have been serving their own gods and lived in isolation from each other. But war broke out because of a certain incident. The prince from one tribe and princess of the other tribe were in love, but decided to sacrifice their lives to put an end to the war. At the last moment princess lowered her sword hoping her lover would live for both of them. The prince vowed to resurrect his princess.

[From vndbreview]