A nominally idle immortal in the heavenly realm, passing by the River of Forgetfulness, he encounters a wisp of a broken soul. Unexpectedly, he becomes obsessed with him forever.
One person becomes an immortal, and the other person is half ghost and half immortal.
A person who is obsessed with it will never forget it, and he will keep it day and night.
A person holds on to the bottom of his heart, and every trace is a memory.
Purpose: redemption