
Five years after a vanished lover and a secret child, Elara Wynn rebuilds her life one song at a time. When fate leads her back to Rowan Hale—as the music tutor in his own home—the truth begins to echo louder than ever.

The episode opens with Tang Yun, a single mother, leaving her daughter, Xiao Dingdang, to wait in the park due to Xiao Dingdang's claustrophobia. Understanding and considerate, Xiao Dingdang decides to sing for money to help her mother. Meanwhile, Mu Nansheng, the seventh master of the Mu Group, returns home after being away for six years. His mother, the old madam, is troubled by the "curse" of the Mu family only having sons for four hundred years and desperately longs for a granddaughter. While showing off her imagined granddaughter to her friends, the old madam accidentally hears Xiao Dingdang's singing and is deeply captivated. Upon seeing Xiao Dingdang's appearance, the old madam believes she is a descendant of the Mu family and excitedly announces to her son, Mu Nansheng, that this is his daughter.

In this episode, the elderly Mrs. Mu, yearning to see her granddaughter, encounters a little girl named Xiao Dingdang on the street. Xiao Dingdang bears a striking resemblance to a childhood photo of her son, Mu Nansheng (the seventh), dressed as a girl. Xiao Dingdang is busking to earn money for school, which deeply moves the old lady, who becomes convinced she is her granddaughter. Despite Mu Nansheng's doubts, he recalls a past event under his mother's persistent questioning. Mrs. Mu insists on a paternity test for both of them, and the results confirm that Xiao Dingdang is indeed Mu Nansheng's daughter. This news shocks the Mu family, who had not had a female descendant in four hundred years.

The Mu family mobilizes land, sea, and air forces to search the entire city for the lost "Mu family little princess," Xiao Dingdang. Meanwhile, while busking on the street, Xiao Dingdang tricks the arrogant Lin Yue into stepping on dog feces in public. Simultaneously, Tang Yun, who comes to Mu Le Group to apply for a music assistant position, unexpectedly discovers that her direct superior is her old enemy, Lin Yue. Due to past grievances, Lin Yue publicly humiliates and shoves Tang Yun. At a critical moment, Mu Nansheng (Seventh Master), who came to the company, appears in time and catches Tang Yun, feeling an inexplicable sense of familiarity towards her.

The episode opens with Tang Yun accidentally making physical contact with Mu Nansheng, the seventh master of the wealthy Mu family, during a job interview. She is publicly humiliated by Lin Yue, the music director who secretly has a crush on Mu Nansheng. Mu Nansheng steps in to help Tang Yun and reprimands Lin Yue. After Lin Yue proposes a marriage alliance, which Mu Nansheng rejects by stating he "already has a daughter," Tang Yun seizes the opportunity. Armed with her music teacher qualification certificate and her wit, she successfully markets herself and is immediately hired by Mu Nansheng as a private music teacher for his daughter, securing a generous monthly salary of 30,000. Following a verbal sparring match with the furious Lin Yue, Tang Yun suddenly realizes her daughter, Xiao Dingdang, is still at the park. At the same time, Mu Nansheng receives a call that a child has been found at the park, leaving the audience in suspense.

Mu Nansheng (Seventh Master) sends people across the city to find his long-lost daughter, but they make a mistake and find the wrong person. Meanwhile, Tang Yun, who has just passed her interview, takes her daughter Xiao Dingdang to a convenience store to celebrate, only to find she doesn't have enough money to pay. Xiao Dingdang pulls out a mysterious black card to save the day, which turns out to be Mu Nansheng's secondary card. The payment notification immediately allows Mu Nansheng to track his daughter's location. He rushes to the convenience store but misses the mother and daughter who have just left.

This episode follows Mu Nansheng (Seventh Master), dressed in a suit, as he urgently searches for a four- or five-year-old girl with his subordinates, guided by a GPS tracker. Meanwhile, the girl's mother, Tang Yun, is homeless after being kicked out by her landlord. Her daughter, Xiao Dingdang, receives a black card from a mysterious old woman. Driven by their dire circumstances and a business card bearing the name "Mu Nansheng," Tang Yun finally decides to take her daughter to the Mu family to seek help, bringing a new turning point for the fate of mother and daughter.

The elderly matriarch of the Mu family is beside herself with worry over the disappearance of her granddaughter, the "Little Princess of the Mu Family," and furiously scolds her sons. To appease their mother, the Mu sons present lavish gifts for their niece, including castles, amusement parks, and gold bars. The seventh son, Mu Nansheng, reveals he has already hired a top vocal coach for his daughter. Just as the matriarch is praying fervently, the vocal coach Tang Yun and her daughter, Xiao Dingdang, arrive for the interview. The matriarch mistakes Xiao Dingdang for her granddaughter's spirit returning home, pushing the plot to a climax amidst surprise and misunderstanding.

Single mother Tang Yun takes her daughter Xiao Dingdang to the wealthy Mu family to apply for a music teacher position. However, she discovers that the student she is supposed to teach – the Mu family's young lady who has been missing for five years – has still not been found, putting her job at risk. To secure her position, Tang Yun quickly devises a plan to host a grand singing competition to lure the young lady out. This proposal is immediately met with approval from Mu Nansheng, the seventh master of the Mu family, and his relatives, showcasing the family's immense wealth and doting affection for the girl. To further prove her capabilities, Tang Yun plays the piano on the spot. Her music and presence unexpectedly trigger deep memories for Mu Nansheng, hinting at a past connection between them.

Due to a power outage triggering his claustrophobia, Mu Nansheng (Seventh Master) has an episode, and Tang Yun unexpectedly discovers his symptoms are similar to her daughter, Xiao Dingdang. As a thank you, Seventh Master invites Tang Yun to accompany him in a competition and suggests Xiao Dingdang also compete. Backstage at the competition, Tang Yun and her daughter have a tense encounter with Tang Yun's archrival and judge, Lin Yue. Lin Yue makes rude remarks, mocking them as "country bumpkins" and insulting Xiao Dingdang as a "bastard." Tang Yun and Xiao Dingdang cleverly retaliate, escalating the conflict and creating a highly charged atmosphere.

Tang Yun brings her daughter, Xiao Dingdang, to a music competition hosted by the Mu family for the "Mu Family Little Princess." However, they are publicly humiliated and driven away at the entrance by judge Lin Yue. At a crucial moment, the Mu family's fourth brother appears, rescues Tang Yun, and forcefully arranges for Xiao Dingdang to compete. Lin Yue harbors resentment because of this. Meanwhile, Mu Nansheng, the Mu family's seventh master, is reviewing contestant information when he accidentally discovers his long-lost daughter, Xiao Dingdang, through the facial recognition system. His expression drastically changes, and he immediately rushes to the competition venue.