Ryu Sera (류세라; also known as Sera) is a South Korean singer-songwriter and YouTuber. She is a former member of the girl group 9MUSES.
Following Rana's departure in January 2011, she was appointed as 9MUSES' leader.
2014–present: YouTuber, solo career
Since 2014, she has been active on YouTube under the name 'Sera Ryu-류 세라'.
She made her solo debuted on August 1, 2015 with her first studio album Serenade.
- Serenade (2015)
- "Good Person OST Part.14" (2016)
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