Su Qing, who had just graduated from university, was pulled by the thread of fate and came to Qingzhou. With longing and confusion about the future, she settled in a cramped rental house. In the unfamiliarity and cramped environment, the small window in the bathroom became a place for her to peek into the outside world.
During the day, she rushed to the library where she was preparing for exams and in the flower shop where she worked; at night, when she was walking home alone, the small bridges, flowing water, and people's lights along the ancient streets of Qingzhou were, to her, both the gentle comfort given by the city and the background that set off her loneliness. She was like an intruder, longing to be accepted but full of fear.
During her days in Qingzhou, she met Qin Yao, the owner of a flower shop, and the gears of fate turned quietly. Can Su Qing find her own warmth and direction in this world of fireworks? What kind of story will he write with Qin Yao?