"Above the ninth level of heaven, there is a cave with the red sun on its back. The cave covers an area of thousands of miles. There is a mirror lake outside the cave. There are koi carp wandering in the lake. The colorful glow on the lake builds an arch bridge. On the bridge, a big white goose walks leisurely..." This is a story with a heroine and no CP. If you read the others, you will know that the short story has been completed.
Purpose: To cultivate immortality? Why? What is the way of heaven?