The story revolves a dubbing genius Fang Yan, who suffers from sleepwalking due to a trauma; and a film producer Shi Meng. Shi Meng helps Fang Yan walk out of her traumatic experience.
Fang Yan auditions for a film dubbing role but suddenly collapses from her illness and falls into Shi Meng’s arms. She mistakes him for Shi Yi and believes he is the key to curing her condition.
To approach Shi Yi, Shi Meng decides to sign voice actress “Yinjiang” (Fang Yan). In the rain, he becomes captivated by her voice online, and the two unexpectedly meet again outside a record store.
Shi Meng brings Fang Yan to his mother’s birthday party. She discovers Shi Yi is the one behind her online interactions and confesses her illness.
Ling Fangqin forces Shi Meng and Fang Yan to live together. Shi Meng sets strict rules, but their first day as roommates is filled with awkward mishaps and chaotic moments.
Shi Yi warmly chats with Fang Yan and gives her his coat. Back home, Fang Yan celebrates with friends but leaves a mess, angering Shi Meng when he catches her in the act.
Shi Yi is surprised by Fang Yan’s visit and gives her a handmade wooden harmonica despite mixed feelings. He learns items with his presence can help ease her illness.
Shi Yi forgives Fang Yan after the harmonica is ruined and gives her his scarf. When the director goes on strike, Fang Yan grows anxious, while Shi Yi reassures her the situation is manageable.
Shi Meng is furious when he learns his father is declared dead at a funeral. Unable to accept it, he rushes to the cemetery and clashes with Shi Yi over their long-standing conflict.
After getting drunk, Shi Meng behaves recklessly, making Fang Yan flustered. The next day, he is deeply touched when she retrieves his old shelf, realizing her thoughtfulness.
Shi Meng cares for Fang Yan after her injury, cooking and helping her rehearse. Their growing closeness makes their hearts race as she begins to experience the feeling of love.
To avoid regrets, Fang Yan decides to love Shi Meng freely for two days before leaving. She sets a deadline for her first love, choosing to cherish the remaining time by his side.
Fang Yan celebrates Shi Meng’s birthday with fireworks by the lake, then quietly moves out and says goodbye, deciding not to disturb his life any longer.
Shi Meng drinks in a bar over love troubles. Hao Yingjun scolds him for hesitating and sets up a plan to lure Zuo Yao to pick him up, hoping to give Shi Meng a lesson in taking action.
Shi Meng tricks Fang Yan into meeting him on a romantic bridge and confesses his feelings sincerely, but Fang Yan turns him down, leaving him hurt and confused.
Fang Yan mistakes a heavily bandaged man for Shi Meng and tearfully confesses. The real Shi Meng appears behind her and pulls her into an emotional embrace.
Fang Yan tells Zuo Yao she is dating Shi Meng, sparking a fierce argument. Zuo Yao warns her illness makes love risky, and Fang Yan decides to be honest with Shi Meng.
After Shi Meng breaks up with Fang Yan, both fall into pain. Gu Wei returns from abroad and grows close to Shi Meng, making Fang Yan and others believe he is a heartless playboy.
Shi Yi suggests Fang Yan move in with him. She discovers Shi Meng’s childhood drawings about a kidnapping and his father’s disappearance, deepening her sympathy for him.
Shi Yi and the police arrive in time to stop Xiao K. Witnessing Shi Meng risk everything for her, Fang Yan realizes his true feelings, and the two reconcile sweetly.
Shi Yi’s distraction while driving triggers Fang Yan’s illness. He brings her to Shi Meng and reveals the truth about her condition. Meanwhile, Gu Wei urges Fang Yan to leave Shi Meng.
After his daughter’s failed romance, Gu Yuanzhou pressures Shi Meng to break up with Fang Yan. Shi Meng firmly defends her, angering Gu Yuanzhou even more.
At the company board election, Shi Meng is set to win chairman, but Shi Yi suddenly sides with Gu Yuanzhou. Their secret alliance defeats Shi Meng and pushes him out.
As an engagement proceeds without Shi Meng, Fang Yan fakes an episode to stall. At the critical moment, Shi Meng appears, takes her away, and the dramatic interruption makes headlines.
Fang Yan follows a clue but is terrified by a trap set by Gu Yuanzhou and falls into a lake. She recalls her past trauma—the true cause of her illness—and uncovers the truth about her father’s death.
