Zhu Zhi Xin receives instructions from her boss to form a girl group “Dada Dream”, and is tasked to work with music producer Fang Wen Bin, her first love. Eight girls who are selected as trainees includes Li Si Tong, whom the boss specifically wanted, and Fang Jing Chen, Wen Bin’s daughter who stammers. Zhi Xin’s son Zhu Yong Jie, a music producer intern, also starts questioning her past. 神秘老板为了某种目的，要组一个女团“Dada Dream”，将任务交给助理朱芷欣,而指定合作的音乐人是芷欣的初恋情人

Yong Jie threatens to reveal Jing Chen's identity as Closet Singer so that she will watch a movie with him. He starts develop feelings for her. Jing Chen has a crush on her company's artiste, Yi An, not knowing that he is dating secretly. Zhi Xin forbids Yong Jie to dabble in music and flares up seeing him at Xin Shuo Music. Yong Jie’s internship at Xin Shuo is exposed, and Zhi Xin wants him to resign. 勇杰以静晨是Closet Singer的秘密，威胁静晨陪他看电影，对静晨开始倾心...

Zhi Xin is quite worked up when she realises Wen Bin recognises her but Wen Bin does not want to remember anything about her. Wei Cheng overheard their conversation and feels that their relationship is complex. Wen Bin finds it hard to forget how Zhi Xin suggested to break-up without a reason back then. Wei Cheng is concerned about Zhi Xin who admits she once was in a relationship with Wen Bin. 芷欣发现文斌其实认得她，有些激动，文斌淡淡说他根本不想记得芷欣的事。伟诚听到两人对话...

Zhi Xin brings Wei Cheng to the eatery she used to frequent with Wen Bin; there they bump into him. As Zhi Xin thinks of the past, she can’t resist telling Wen Bin she still has feelings for him. However, Wen Bin nonchalantly reminds Zhi Xin she was the one who gave up on them and walks off. Zhi Xin decides to forget all and date Wei Cheng as she realises that this past affair cannot be salvaged. 芷欣带伟诚到以前她和文斌常去的餐厅吃饭，巧遇文斌。芷欣回想往事，忍不住告诉文斌自己对他仍未忘情...

Breena and Debbie expose that Jing Chen seducing Wen Bin. Wen Bin reveals she is his daughter, everyone feels the competition is unfair. Jing Chen announces her withdrawal so that her father will not be put on the spot. Yong Jie thinks of how to make Jing Chen change her mind, by painting with Si Tong. They run into each other during the session, Si Tong suspects she has fallen for Yong Jie. Breena和Debbie爆出静晨勾引文斌之事，文斌澄清静晨是他女儿，众女哗然，认为这样的比赛不公平...

Wen Bin can’t resist playing the unfinished song as he recalls all everything that happened after meeting Zhi Xin again. Yong Jie hears it and finds the rhythm familiar. He recalls seeing Zhi Xin’s treasured music score. Wen Bin is touched, he didn’t think she would keep it. Yong Jie goes home to find it. Yong Jie sees it being torn and pieced together, proving she still has feelings for Wen Bin… 文斌想起与芷欣重逢后的一切，情不自禁弹奏未完成的那半首歌。勇杰听到，感觉旋律很熟悉...

Zhi Xin returns Wen Bin the love necklace. Jing Chen mistakes the necklace for her mum's and takes it. Yong Jie is puzzled when he sees her wearing Zhi Xin’s necklace. Jing Chen discovers her father and Zhi Xin were ex-lovers. She realises that she was not the cause of her mother’s death. Her mother was upset that Wen Bin still missed his ex. It then led to her asthma attack and death. 芷欣将定情项链还给文斌，静晨误以为项链是母亲的遗物，将项链拿走。勇杰看到静晨戴着芷欣的项链，感到不解...

Wei Cheng helps Si Tong to relieve stress. Si Tong asks Wei Cheng why he's treating her so well and he tells her that she resembles his daughter. Si Tong is indeed Wei Cheng’s biological daughter. Wei Cheng identifies her when he sees her birthmark, at the jubilee celebration where she plays the role of a mermaid. To fulfill Si Tong’s dream, Wei Cheng decides to have a girl group training class. 伟诚帮思彤疏解压力，思彤问伟诚为什么对她好，伟诚说思彤很像他的女儿。其实思彤是伟诚的亲生女...

Group B trainees’ drink is laced with laxatives, Si Tong improvises and finishes the performance but they still lost. Breena admits that it was her doing, resulting in her disqualification from the competition. Yi An sees Breena’s message to Hui Ting by chance and realises that it was her who spiked the drinks. Yi An is utterly disappointed with Hui Ting and wants to break up. B组团员的饮料被人下泻药，思彤临时改变表演方式，有惊无险完成表演，但最终仍落败。Breena承认是自己所为，结果失去参赛资格，被令离开...

Wei Cheng invites company employees to celebrate Zhi Xin's birthday. Wen Bin goes to Cupid' for a drink alone but got into a conflict in his drunk state. Peter informs Zhi Xin and she rushes over to take care of Wen Bin. Knowing that Zhi Xin cannot put away her feelings for Wen Bin, Wei Cheng proposes for a break-up, causing Zhi Xin to feel guilty. 芷欣生日，伟诚请了公司员工，帮她庆祝。文斌落寞地在丘比特喝闷酒，却因醉酒而与人起冲突。Peter通知芷欣，芷欣匆匆离去照顾文斌。伟诚心知芷欣始终无法放下文斌，提出分手，芷欣感歉疚。

Malicious comments about Jing Chen surface online, reporters rush to interview Yi An. Jing Chen is feeling uncomfortable after seeing those aggressive comments. Yi An suddenly appears and announces that he is currently chasing Jing Chen. Jing Chen is shocked. Hui Ting goes to Yi An for an explanation, but is exposed by him that all the remarks online are done by her. Yi An tries to persuade Hui Ting to stop harming others...

Si Tong is confused when she finds out that Wei Cheng, the one she has a good relationship with, has the same name as her biological father. She calls her mum in Korea to clarify but the stepfather hangs up the call. Si Tong thinks that Wei Cheng can't be the father that abandons them as Wei Cheng has a warm personality. However, Si Tong starts to avoid Wei Cheng as she feels uneasy facing him. 思彤发现与她关系良好的诚哥竟然和自己的亲生父亲同名同姓，感到疑惑，打电话回韩国向妈妈求证生父的情况...

Yong Jie and Si Tong find out that Wei Cheng hangs the keychain Si Tong broke on the dormitory doorknob for her. Si Tong thinks back to the past, realises that Wei Cheng is her father. Si Tong cannot forgive Wei Cheng for dumping her mother and her back then. She does not want to face Wei Cheng as she plans to withdraw from DaDa Dream. At this moment, Emma suddenly faint…… 伟诚挂了思彤弄坏的钥匙扣在宿舍门把上给她，被勇杰和思彤发现。思彤回想之前发生的事，恍然伟诚是自己的父亲。她无法原谅伟诚当年抛弃妻女，不想面对伟诚..

The girl group goes to an industrial area for a MV shoot. Suddenly, the steel frame collapses. Si Tong pushes Jing Chen away upon seeing it collapses on Jing Chen allowing herself to be hit. The frame hit Si Tong’s spinal cord, causing her left leg paralysed. Wei Cheng worries that she can’t take it, so gets everyone to keep it a secret. Si Tong thinks that if she actively rehab, she’ll recover... 女团到工业区拍摄MV，不料钢架突然倒塌，思彤见钢架即将砸到静晨，扑到静晨身上，自己被钢架击中。。。

Si Tong is shattered as she finds out that she may be permanently paralysed. She does not wish to burden Yong Jie, asks him to join her for a last dance in the garden, then breaks up with him. Yong Jie does not give up; he acts as a mermaid in the pool to encourage Si Tong. Suddenly, his leg cramp as he struggles in the water. Si Tong forgets about her injury and jump into the water to save him... 思彤得知自己可能永久瘫痪，大受打击。她不愿拖累勇杰，要勇杰陪她到花园跳最后一支舞...

Si Tong starts to practice hard along with her group mates, to prepare for the national contest, soon after her leg regains feelings. Although she feels pain from her waist during trainings, she does not give up and secretly eats painkillers. DaDa Dream completes the contest, but Si Tong faints after the contest due to the recurrence of her old injury where she faces the danger of total paralysis. 思彤的脚恢复知觉，与团员一起努力排练，积极备战国际大赛。训练期间她虽然感到腰部刺痛...