In a forbidden first encounter, cultural relic restorer Wen Yu discovers a secret painting by Su Yanqing, a bisexual painter from the Republic of China, in an ancient house. The person in the painting looks similar to himself. On a rainy night, hidden inscriptions appear in ancient paintings. When Wen Yu touches the paintings, he resonates with Su Yanqing a hundred years ago.
In the late-night restoration room where time and space intersect, Wen Yu is pinned down on the restoration table by Su Yanqing who suddenly appears. The artist's fingertips are stained with paint and he is painting a begonia on his collarbone. The two of them feel an abnormal current when their skin touches.
Cheng Hui, the director of the museum, became suspicious of the sudden appearance of "intern" Su Yanqing, and Su Yanqing discovered that there were historical materials in this era that recorded the ending of his "martyrdom for love". During the investigation, the two had more and more frequent physical contact.
Under the entanglement of fate, when Wen Yu helped Su Yanqing adapt to modern life, he accidentally discovered his bisexual identity, but Su Yanqing showed an expression of "finally being recognized". It turned out that Wen Yu's previous life during the Republic of China was an officer who had a physical relationship with the painter.
