Blade of Light and Shadowsong

Since ancient times, the opposition between light and darkness has been an iron law in the world. She is a Saint of Light held up by the Holy See. She has believed throughout her life that light is the only right way. "Why does your breath resonate with the fragments in my palm?" She is a shadow blade executor who walks on the edge of life and death. She is denounced as a heretic by the light and cannot be tolerated in the world. "I should be the one to ask you this!" But when a deadly threat comes, Shadow changed from his normal state but took the lead in swinging his blade, tearing apart all the attacking demons. "What I hate has always been the hypocritical Holy See, not you, a saint trapped by doctrine... Just leave." That day, the Saint of Lightsong realized for the first time that Shadow was not born violent and evil... Is it really right for the saint to stick to her teachings for half her life? And where should the shadow wandering in the dark night go from here?