In the Boundless World, You Come Late to Autumn

She was originally a princess of the current dynasty, with extraordinary spiritual power. She was sent to the water alliance sect to practice by her mother. Jiang Xiangnan, formerly known as Jiang Qingshu, is the next leader of the Fire Sect. His attainments in spiritual power and magic have reached the realm of transformation. No one expected that the alliance would break down and a war would break out The two were separated. The life and death of the male protagonist were unknown, and the misunderstanding deepened. She looked for him... (The ending is yet to be determined, it depends on the protagonist's choice)