Two Shengs Return in the Clouds

Once her clan fell, she was sealed away for thousands of years, but a traveling Immortal disciple accidentally broke the seal and escaped. He originally went down the mountain for training but came to a fairyland to rescue her who was like an elf. From then on, the two walked together. She avenged her clan and wiped out the demon clan. He grew up to be an immortal and protected her throughout her life, but in the end he died for her. After searching for souls for five hundred years, they finally met Heaven again. He was the beloved prince in Heaven, and she was a descendant of the ancient dragon clan. He once again fought to protect her for life, and this time, she chose to protect him... He is the son of the Demon King. He appears to have returned to the heaven, but he works hard for his father to return to the world. However, he finally meets her, whom he falls in love with. He gives everything and even his life for her, but only asks for her final forgiveness...