- IU as Lee Soon Shin
- Go Doo Shim as Kim Jung Ae
- Jung Dong Hwan as Lee Chang Hoon
- Kim Yong Rim as Shim Mak Re
- Son Tae Young as Lee Hye Shin
- Yoo In Na as Lee Yoo Shin
- Jo Jung Suk as Shin Joon Ho
- Kim Gab Soo as Shin Dong Hyuk
- Go Joo Won as Park Chan Woo
- Lee Mi Sook as Song Mi Ryung
- Kim Yoon Seo as Choi Yun Ah
- Jung Woo as Seo Jin Wook
- Lee Ji Hoon as Kim Young Hoon
- Lee Ji Hoon as Jo In Sung
- Yoon Da Hoon as Hwang Il Do
- Bae Geu Rin as Shin Yi Jung
- Yoon Da Hoon as Hwang Il Do
In-sung informs Joon-ho and Soon-shin that her name has been omitted from the audition list. Joon-ho inquires and finds out that Song Mi-ryung told the director to do so. He is shocked.
Joon-ho is furious and goes to Mi-ryung’s house to ask about all this. She says that she is disappointed with Soon-shin and she has no potential. She can’t be a star and to give up on her. Joon-ho tells her that she is saying all this after stirring up hope in her. Mi-ryung says that he has no right to say this as he also did this for a bet and can’t he do anything without her help.
Soon-shin tries to call Mi-ryung but she ignores her calls.
Yi-jung is annoyed to hear about Chan-woo having a girlfriend. She goes to the clinic to meet him but he has gone out.
Joon-ho’s dad Shin Dong Hyuk goes for a drink with Mi-ryung and they both discuss about how much alike they are.
Joon-ho tells Soon-shin that Mi-ryung will not teach her anymore as she is busy with her movies and dramas. She will go to some other teacher.
In-sung investigates and tells Joon-ho that Mi-ryung actually met the director to tell him to select Soon-shin in the audition, but she changed her decision all of a sudden.
Joon-ho thinks that Yun-ah might be responsible for this and goes to confront her. She answers back that why he is so much into this bet and is he going to blame her every time something went wrong, is this what he calls ability.
Yoo-shin brings Soon-shin home, who then apologizes to mom. Mom asks the reason for quitting the class and she answers that Mi-ryung is busy. Mom gets further angry when Soon-shin says that she might be disappointed with her.
Soon-shin sees light in Jin-wook’s room and thinks he is a thief. She starts beating him, but others come and save him.
Mom calls Mi-ryung who tells her that she has stopped teaching Soon-shin as she is very disappointed in her. And tells her not to bother her with this anymore.
Mom sees the dress Mi-ryung bought for Soon-shin and throws it away. She tells Soon-shin why she respects her so much when she abandoned her. Soon-shin gets confused.
Yoo-shin meets Chan-woo and tells him that she is ready to date him under three conditions: 1) it will be a secret from their family, 2) they will not visit each other’s workplace without informing and 3) they will not control each other. He agrees and tells her that his condition is to respect each other and do their best to keep the relationship.
Manager Hwang accidentally meets the same reporter who spread news about Mi-ryung earlier. He says that Manager Hwang told him that Mi-ryung gave birth to a girl when she was young. Manager Hwang tells him that this is not the truth and to keep this a secret, but the reporter ignores him. Manager Hwang asks Mi-ryung that Chang Hoon must have sent that baby to orphanage, but she scolds him to not repeat this topic again. He checks about Lee Soon-shin’s birth year and suspects something. He tells his spy to find Chan-woo’s dad’s number (who was Soon-shin’s dad’s friend.)
Soon-shin thinks about her days with Mi-ryung and goes to meet her in her house. She is not at home so she waits outside. Mi-ryung comes there with Yun-ah and is surprised to see Soon-shin. She tells her that it’s good that Soon-shin knows that she has disappointed her. Soon-shin becomes teary eyed. Mi-ryung tells her to leave. Joon-ho comes there. He says that why she came here to be treated like that and takes her with him.
- You’re The Best Lee Soon Shin (Episode 15)
- You’re The Best Lee Soon Shin (Episode 14)
- You’re The Best Lee Soon Shin (Episode 13)
- You’re The Best Lee Soon Shin (Episode 12)
- You’re The Best Lee Soon Shin (Episode 11)
- You’re The Best Lee Soon Shin (Episode 10)
- You’re The Best Lee Soon Shin (Episode 9)
- You’re The Best Lee Soon Shin (Episode 8)
- You’re The Best Lee Soon Shin (Episode 7)
- You’re The Best Lee Soon Shin (Episode 6)
- You’re The Best Lee Soon Shin (Episode 5)
- You’re The Best Lee Soon Shin (Episode 4)
- You’re The Best Lee Soon Shin (Episode 3)
- You’re The Best Lee Soon Shin (Episode 2)
- You’re The Best Lee Soon Shin (Episode 1)