Jeon Seol Hee is unhappily married to an aloof and busy attorney. She plays music with her high school friends to escape the exacting demands of her husband and in-laws.
Seol Hee prepares for court where she will make her case for divorce. Meanwhile, an opportunity arises for Seol Hee's band, and an old love interest re-enters her life.
The case that Seol Hee has taken on conflicts with the interests of her ex-in-laws. As a result, Ji Wook's mother conspires with Seung Hye to stop Seol Hee.
Ji Wook wreaks further havoc on her case by threatening to sue for her involvement. On the bright side, the Comeback Madonna Band makes its debut on the radio.
The Comeback Madonna Band continues to gain attention and progress, while Ji Wook's finally stands up to his mother and refuses to take the case any further.
To the band's elation, Tae Hyun announces that the band has secured a spot at the Movie Music Festival. Seol Hee is surprised to learn the identity of the individual who helped her win the case.
With their suddenly busy schedules, the members of the Comeback Madonna Band find themselves running to stay in place and struggling with the band's future.