Yoon Hee's daughter dreams to be a classical singer. Despite her mom's disapproval, she's a feisty middle school student who pursues singing.
h flashes back to her memories and after a long time she meets Cheon, then she is confronted with the fact that she won the Cheung-a prize for the most beautiful vocal of a vocal.
Oh obtains a sum of money from Cho in return for his secret affair, and bribes the school principal in order to send her daughter back to school. Oh finds a music teacher to train her daughter, Ro Na.
All of Hera Club's middle schoolers aim to top the entrance audition to Cheong Ah Arts High School so does Ro Na, Yoon Hee's daughter. The big day arrives, but a surprising name tops the list of successful applicants. It's an unheard girl named Min Seol A.
Rona Bae confronts Cheon about the fact that she faked her admission results at Cheung-A's school in favor of her daughter.
(Anna Lee) was killed under mysterious circumstances in the (Hera Palace) penthouse, and an attempt was made to dispose of her body.
Sori Yeon discovers the true cause of her daughter's death (Anna Lee) after the autopsy results come out.
Surrey Yoon discovers the truth about her husband's betrayal, and later learns of the joint crime of killing Anna Lynn, so she begins planning revenge.
Su Ryeon visits Congressman Cho to reveal the truth behind the countless orphans who were adopted but deported back.
New evidence is found in the joint crime case and it's Lee's watch. Meanwhile, Su-ryun's plan is in jeopardy.
Cheon bans Rona Bae from performing on stage because she caused a traffic accident. Later, Chee-eum decides to reopen the Cheong-Ae Arts and Dance Festival.
So-ryun returns to work as a manager at her mother's company, Oh becomes a high-class person after the announcement of the Bosung construction project.
Ro Na-bae finds out the truth about her mother's past and what happened with her at Cheong-A Art School.
Jo suspects that someone is spying on him, and Soo-ryun and Oh team up to take revenge on Jo and steal his money.
Yoon Hee moves into Hera Palace and the whole Hera Club is astonished. More surprisingly, it was Joo Dan Tae who wrote a recommendation letter.
A big argument arises about Oh moving to Hera Palace, so Chi Oun tries to stop her. Oh tries to get close to Lee in order to achieve her interests.
Ha finds out about Che Yun cheating on him with Jun. Si Yuk Hoon helps Ro Navi at the school to get rid of the smoking charge.
Ho Dong-gu returns to avenge his sister's death, meanwhile, Ha confronts Chi-yeon about her betrayal.
After Seok-hun and Seok-kung win the Cheung-A School Ambassador Award. Exam question leakage scandal spreads in school.
Jo defrauds Oh of all her money, while Logan confronts Lee Sor Yeon about the truth about her daughter, Anna Lee, and gives her ten days to confess.
(Oh) starts working for (Joe) in agreement with (Sori Yun). Oh and Logan are invited by the residents of Hera Palace to a big party at the mansion.
While Suri Yeon exposes the affair between her husband and Chee Yeon, Logan Lee forces her to tell everyone about her real daughter.
Due to Eun Byul's pressures, Ro Na decides to drop out of her school, and later Ha decides to divorce Chae Yeon.
As Chi-yeon takes over the position of headmaster of Cheung-er School, Jo's suspicions of Ho-gu change
Seo Jin covers up her father’s death as an acute heart attack and acts as if she had nothing to do with it. After the funeral, she secures her position as the new director of the Cheong A Arts Foundation
Su Ryeon confesses how she’s been using Yoon Hee to reveal the truth behind Seol A’s wrongful death.
While Rona Bae goes back to school, Eun Byul learns the truth about her mother cheating on her father.
So Ryun runs away from home and takes refuge in Logan Lee's house, meanwhile, she is betrayed by an unexpected person.
Oh tries to convince Jo to kill Soo Ryun, while Logan and Soo Ryun organize a party to invite all the suspects in Anna Lee's murder.
After So-ryun confronts Oh about killing her daughter, Anna Lee, she is kidnapped by Go, but someone comes to her rescue just in time.
Dan Tae is sued for embezzlement and finds out it was Logan Lee who reported him.
Seo Jin and Yoon Hee both beg Su Ryeon to stop now. They can’t bear seeing their daughters suffer from their wrongdoings
Yoon Hee admits to killing Su Ryeon at the police station, but there’s actually a real culprit behind Su Ryeon’s murder.
Dan Tae and the residents of Hera Palace prepare a proposal for Seo Jin. However, police officers barge in and arrest Dan Tae as the murderer of Su Ryeon.
While Yoon Hee turns herself in, she runs into Dan Tae and Seo Jin at the police station. Now that Dan Tae is a new suspect, other residents also start to believe that he killed his own wife.
Doctor warns Seo Jin not to sing for awhile, but she can’t give up on her concert as it can damage her reputation.
Out of the blue, Yoon Chul visits Seo Jin at the hotel where she’s supposed to meet Dan Tae.
Ro Na comes back to Cheong A Arts High School and Ma Ri gets furious after finding out that her daughter, Jenny is being bullied by Seok Kyung and her friends.
Seok Kyung threatens Seo Jin with a secret she claims to know about her for the grand prize given at the Cheong A Art Festival.
Seo Jin finds her mother and sister in her office with a non-disclosure agreement and tells her to step down from being the director.
A janitor who found Ro Na on the staircase runs into the auditorium, screaming when Seo Jin announces the grand prize winner of the Cheong A Art Festival.
Eun Byeol is going mad day by day, and Seo Jin calls Yoon Chul for help. When Yoon Hee finds out that Yoon Chul is also involved in Ro Na’s death, she runs to Cheong A Medical Center to find him.
Yoon Hee meets Ae Gyo for the first time, and she is surprised as she looks just like Su Ryeon who is supposed to be dead. Seok Hoon tries to figure out what Eun Byeol has done to Ro Na.
Yoon Chul is too guilty to stay by Yoon Hee’s side anymore, and he decides to leave her.
Yoon Hee and Logan try to persuade Ae Gyo to stay away from Dan Tae.
Seok Hoon believes there is something his father, Dan Tae, is hiding about Su Ryeon’s death.
Yoon Chul admits the crime as he has no choice but to protect Eun Byeol.
Yoon Hee also visits Yoon Chul to tell him something she has been hiding all along.
Seok Hoon receives a phone call from Ro Na and runs to see her. When Ro Na tells him the truth, he wants to take revenge for her.
Yoon Hee accepts Ae Gyo’s plan as she realizes that Ae Gyo was Su Ryeon all along.
the police find Su Ryeon and Ro Na in the basement underneath Dan Tae’s cottage.
Yoon Hee decides to take her punishment as she feels sorry for Su Ryeon and her daughter,
The rest of the members of the Hera Club claim their innocence throughout the trial for Seol A’s case.
Finally, Su Ryeon spends a pleasant time with her kids, Seok Hoon and Seok Kyung. However, Seok Kyung is not happy how Su Ryeon and Seok Hoon are overly generous to Ro Na.
The newlywed couple, Dan Tae and Seo Jin, go through a tough time adjusting to prison life, and they try their best to find a way to get out from there with their money and power.
The moment Seo Jin is released from prison, she visits her daughter, Eun Byeol, but Eun Byeol avoids her. Therefore, she decides to retrieve everything back from Dan Tae and her stepmother.
On the day of the performance test, students are getting ready at the examination hall for Seoul University of Music, and Seok Kyung relays a shocking message to Jenny just before the test.
Jun Ki finally meets Su Ryeon and tells her the truth behind Dan Tae’s real identity and Logan’s death.
Hera Palace residents suspect Yoon Hee of taking Logan’s 10 billion dollars which he received as an inheritance under Seol A's name.
Yoon Hee straight away notices that Dong Pil was hiding something for Dan Tae.
Ro Na and Seok Hoon try to help Eun Byeol as Bun Hong was getting more and more obsessive over her.
After discovering Oh Yoon Hee's body, Yoo Dong Pil falls victim to Joo Dan Tae and drops to his knees, begging for his life.
Due to Joo Dan Tae's scheme, Jin Bun Hong holds an emergency press conference claiming that Oh Yoon Hee kidnapped Ha Eun Byeol.
Eun Byeol wakes up at the hospital, and despite the good news of her getting into Seoul National University, she becomes frantic as she accuses Seo Jin of killing Oh Yoon Hee.
Ma Ri vows to help Su Ryeon takedown Joo Dan Tae as Su Ryeon figures out what Yoon Hee wanted to mention before she died.
Su Ryeon becomes desperate after finding out that Seok Kyung is her biological daughter and that Ju Dan Tae may have taken her somewhere else other than Italy.
When Seok Kyung knows that she is Su Ryeon's biological daughter, she decides to run away from the orphanage.
To help find Seok Kyung, Seok Hoon fools Dan Tae into thinking that he wants to take over his father's business and starts digging for clues.
Joo Dan Tae and Cheon Seo Jin celebrate together for having their plan go through, blaming Logan's supposed death on Su Ryeon. However, they each know that soon the other will be after their throat.
Logan reunites with Su Ryeon, and he tells her everything that happened. With Yoon Chul's help, they vow to punish Seo Jin and Dan Tae for their crimes.
Joo Dan Tae tries to escape on a boat as a fugitive. However, when he wakes up, he finds himself confined and as Baek Jun Ki.
Seo Jin survives and recovers in the hospital. However, Su Ryeon believes her mental state is all just an act.
Cheok hyung turns herself in to the police for helping Jo escape out of the country.
Su Ryeon defeats Dan Tae and sends him plummeting to his death. However, he takes down Hera Palace, blowing it up as he planned.
When Ha wakes up from his coma, he learns of Seo Jin's lie about her sanity.
Su Ryeon falls over the cliff and doesn't resurface. The rescuers search to no avail. Meanwhile, Seo Jin stands trial for the murder of Oh Yoon Hee and the attempted murder of Su Ryeon.
After the events changed the lives of many of the mansion's residents, others face their inevitable fate.