Ryu Se-ra (, born October 3, 1987), also known by the mononym Sera (), is a South Korean singer-songwriter signed under the self-founded agency OCTO. She is a former leader and main vocalist of South Korean girl group Nine Muses.
Personal life
Ryu has a younger brother and lived in Vancouver for over 3 years during high school. Her parents divorced whilst she was a trainee. On the variety show "Miss Back", Ryu revealed she had been diagnosed with depression and panic disorder, sharing that her medication caused her to suffer from memory problems.
On January 31, 2025, Ryu announced her upcoming wedding to a non-celebrity. On April 23, 2025, Ryu announced she had gotten married via Instagram.
Career 2010–2014: Debut with Nine Muses On August 12, 2010, Ryu debuted as part of the girl group Nine Muses. Later, she became the leader and main vocalist of the group, following the departure of former leader Rana. On June 23, 2014, Star Empire announced that Ryu's exclusive contract had expired and she announced that she had also left the group.
2015–present: Solo activities and new agency On August 1, 2015, Ryu released her first solo indie EP album "SeRen:Ade". In September 2015, Ryu held her first solo concert in Hongdae, for which 600 people attended.
In March 2018, Ryu founded a new agency OCTO and announced that she would continue solo activities with her real name, Ryu Se-ra. An agency official has stated that the name OCTO carries a meaning of a new beginning. On March 2, Ryu released a single album "Stay Real", managed and published by her new agency. Later that month, Ryu held a second solo concert titled "Spring Rain" at Olympic Hall Muse Live stage, followed by a concert titled "Sun Shower" held on June 23, 2018, at CKL stage. Since 2014, Ryu has been active on YouTube where she shares her solo activities and song covers with her fans. She appeared as a contestant on the music survival reality show Miss Back between October 8, 2020, and January 26, 2021, where she became a finalist.
Discography
Extended plays Title Album details Peak chart positions SalesKOR SeRen:Ade Released: August 1, 2015 Label: Independent Format: CD — "—" denotes releases that did not chart or were not released in that region.
Single albums Title Album details Peak chart positions SalesKOR Stay Real Released: March 2, 2018 Label: OCTO Format: CD, digital download — "—" denotes releases that did not chart or were not released in that region.
Singles Title Year Peak chart positions Sales AlbumKOR as Main Artist"Walk With Me" 2018 — Stay Real"Han River" — Soundtrack appearances"Day By Day" 2016 — rowspan="7" Introduce Me a Good Person OST Part.14"Up and Down" 2020 —Miss Back Part.3"Cat`s Rain" —Miss Back Part.5"Winter Fantasy" —"Lean On Me" —Miss Back Part.6"Finale" 2021 —Miss Back Part.9"We Are The One" — "—" denotes releases that did not chart or were not released in that region.
Filmography
TV series Year Title Network Role Ref. 2013 Blue Tower tvN Tae-hee (Cameo) Reckless Family 2 MBC TV Sera
Reality shows Year Title Network Role Ref. 2020 Miss Back MBN Cast member
Documentary Year Title Director 2012 9 Muses of Star Empire Lee Hark-joon
Endorsements CJ Condition Raisin Tree Drink (with Oh Ji-ho) Hug Ozawa's Eyes Cloud Glasses Jinjusangdan Hanboks
Modelling career 2011 Seoul Fashion Week 2012 Korean International Style Show in Japan 2012 K-Collection in Seoul 2012 K-pop Nature Concert in Jeju
References