Lu Canran is a quiet, diligent undergraduate student at A University who has harbored a secret crush on Liang Yuanzheng for over three years. Liang Yuanzheng is a senior medical resident known for his cold, reserved demeanor and academic excellence. Their paths rarely cross due to their different departments, and Lu Canran’s attempts to interact with him are consistently thwarted by her own timidity and poor timing. She believes that her crush is like window shopping: she only seems to encounter him when she is at her most unkempt, while carefully prepared appearances yield no results. This dynamic is highlighted when she visits him in the hospital for an allergic reaction, exchanging only a handful of words before he dismissively returns to his work.
The narrative shifts when Lu Canran’s roommates, led by the enthusiastic Zhu Huaxin, intervene to help her pursue Liang Yuanzheng. They orchestrate a meeting at a restaurant, but Liang Yuanzheng is called away by a senior colleague, Xue Ningyuan. Later, Lu Canran accidentally encounters Liang Yuanzheng at a bakery, where he had just reprimanded two men for cutting in line. He initiates contact, asking if her allergy has improved, and unexpectedly asks to add her on WeChat, citing the need for follow-up on her medical condition. This marks a significant turning point, as Lu Canran finally gains a direct line of communication with him, despite her awkward and overly complicated WeChat nickname, which she had designed using a cryptography cipher based on his initials.
Their digital interaction progresses rapidly, with Liang Yuanzheng arranging a dinner meeting that is subsequently canceled due to his emergency department duties. Following this, Lu Canran suffers from mild food poisoning after eating at a restaurant with questionable hygiene practices. During her recovery, she begins experiencing auditory and visual hallucinations, which she initially attributes to the poisoning. However, she soon realizes she has gained the ability to see and hear the inner thoughts of others, manifested as floating "bullet screen" text above people's heads. This ability allows her to perceive the hidden truths behind people's polite exteriors, from hospital gossip to secret romantic feelings.
While recovering in the hospital, Lu Canran discovers that Liang Yuanzheng is one of the few people whose thoughts remain invisible to her, appearing only as a blank space or a string of censored characters. This anomaly deepens her curiosity and emotional investment in him. She learns through the thoughts of others that Liang Yuanzheng comes from a difficult background, having lost his mother young and now supporting his grandmother and younger sister. She also discovers that his supervising director, Xue Ningyuan’s father, favors him and may be arranging a match between them, adding a layer of romantic competition to the story.
The story further develops when Lu Canran’s childhood friend, Chen Wanli, is injured in a fight and treated by Liang Yuanzheng. It is revealed that Chen Wanli’s father is a professor researching mind-reading technology, hinting at a possible scientific explanation for Lu Canran’s new abilities. Meanwhile, Lu Canran and Liang Yuanzheng grow closer through shared moments, such as walking together in the rain under a single umbrella. Despite his outwardly cold and professional demeanor, Lu Canran begins to notice subtle signs of interest, such as his concern for her well-being and his willingness to spend time with her outside of medical contexts. The narrative sets the stage for a romantic development where Lu Canran must navigate her new supernatural ability while pursuing her feelings for a man whose inner thoughts remain a mystery to her.
