A romantic music coming-of-age drama about grandmother Oh Mal-soon, who turns into a 20-year-old Oh Doo-ri overnight and enjoys her shining prime once again.
as Oh Mal-soon
as Oh Doo-ri
as Daniel Han
as Choi Ha-na
as Chan Mi
as Li Na
as Sang-joo
as Seongmun (Youth)
as Park Gap Yong
as Ban Ji Suk [Choi Ha-na's mother, Choi Min-seok's wife, Oh Mal-soon's daughter]
as Choi Min-seok
as Kim Ae Sim
as Hoi
as Joon Hee
as Soo Jin [member of the group Element]
as Min Ah
as Olla [member of the group Element]
as Jay [member of the group Element]
as Park Ja Young [Park Gap Yong's son]
as Park Young Joon
as Park Young Suk [Park Young Joon's brother]
as Shin Soon Ae
as Jang Gwi Rye
as Oh Choon Boon
as Byun Kang Suk
as Mysterious taxi driver
