Fu Lanyu's secret love is like the blue rain flower he cultivated, growing silently in a corner invisible to Shi Yi for seventeen years. The bond between the physics genius and the mechanical girl begins with the cherry blossom tree planted together in the kindergarten, which is hidden in every collection of wrong questions written "Exclusively for Yiyi". He remembered all her preferences - the lemon candies that were always in the pocket of her lab coat, the angle at which the starry bowl was tilted when holding the third rib, and even her little habit of biting the end of her pen when she failed to invent.
At the finals of the National Physics Competition, Shi Yi held the gold medal and joked: "Maybe the orange cat helped me correct the wrong question." No one knew that Fu Lanyu at the judges' table hid her burned hands - the Tesla coil he had modified for her bloomed into a rose-shaped arc on the final night. Shi Yi always complained that Fu Lanyu was scarier than AI: he handed her stomach medicine on time when she was eating ice cream, and he had prepared all the parts as soon as she finished drawing the drawing. It wasn't until her old house was demolished that she dug out the yellowed diary from her childhood iron box and understood the significance of the ore specimens he sent every birthday - the molecular formula of "Marry Me" was engraved on the back of the 17th piece of magnetite.
When the acceptance letter from Stanford and the invitation from the Chinese Academy of Sciences arrived at the same time, 12 hours apart, Fu Lanyu held up a petri dish full of blue rain flowers in the video: "The phototropism experiment proved that there is always a lack of oxygen in the laboratory without someone in the East time zone." Shi Yi suddenly remembered that he was always allergic to avoid the blue rain flowers, but silently made the pollen into a sustained-release agent for her asthma medicine.
From electromagnetic formulas to cosmic dust, from Bluestone Alley to particle collider, they finally solved the optimal solution called "Childhood Sweethearts" - Love is the star trajectory diagram on the edge of Fu Lanyu's calculation paper, which Shi Yi made for him
