Seokjin recounts how he first met the girl , one month ago (July 11th) by the railroad tracks after visiting Jungkook at the hospital. As he contemplates how lonely he feels, he sees the girl crossing the tracks towards him. She drops her diary which contained her wish list, and one of the things in it was a clipping of the Smeraldo Flower and a paragraph from The Art Of Loving by Erich Fromm. Seokjin tries to do a lot of things from the book with her for the following month. He also finds the Smeraldo Flower Shop and arranges for their delivery on August 30. Although he knows that he is doing the wrong thing, he is unable to come clean because he is afraid the girl might leave him. He says he wants to make her happy and confess his love for her. He decides to confess on August 30 during the Firework display at the Yangji River because it's her favorite time and her favorite place.
Seokjin waits for the florist to deliver the Smeraldos. The florist arrives in a truck with the Flower Smeraldo logo and delivers the bouquet and tells Seokjin he was late because of the Fireworks Festival. Seokjin realizes the card he asked for was missing, so he calls the driver who says he can make a U-turn and come right back. Just then the girl appears across the intersection and walks towards Seokjin.
Seokjin watches as the Smeraldo truck, which had made a U-turn, hits the girl. He freezes for a moment till he drops the bouquet of Smeraldos and comes back to reality. He watches helplessly as the girl bleeds on the pavement as the first fireworks burst into the sky. He hears a mirror crack.