The ancient intangible cultural heritage skill faces the crisis of being replaced and dismantled by a new cultural and tourism project. The inheritor who guards the skill and the project manager have a conflict. Amidst their disputes and confrontation, they gradually come to understand the past and the hidden three realms behind this craft. Following the clues left by their predecessors, they continuously explore the deep core of the skill and discover the secret left by the predecessors. The inheritor seizes the opportunity to live-stream and showcase the skill, and the shocking performance gains public attention, saving the skill and realizing that inheritance should not be confined to a corner, but should spread outward and continue. At the end of the story, suspense about the whereabouts of the predecessors is also buried.