What movies and TV shows has Y:SY been in?

Y:SY is known for fromis_9 concert ＜LOVE FROM.＞ IN JAPAN, Welcome to Heal Inn, Idol School, 프롤로그_프로미스의 방 엿보기, Fromis's Room and many more. Watch their full filmography free in HD on FluxEntertainment.

Can I watch Y:SY movies for free?

Yes. All Y:SY movies and TV shows are available to stream free in HD on FluxEntertainment. No subscription required.

Y:SY — Movies & TV Free

Acting · Born 2000-01-22 · Seoul, South Korea

Biography

Lee Seo-yeon, known professionally as Y:SY, is a South Korean singer-songwriter and rapper under H1GHR Music. She is a former member of the girl group fromis_9, formed through the reality survival show Idol School (2017). She left the group in 2024. She made her solo debut on November 17, 2025, with the digital single Naked.

Also known as: 이서연, 서연, Lee Seo-yeon, Yi Seo-yeon

Filmography

fromis_9 concert ＜LOVE FROM.＞ IN JAPAN (2023)
Welcome to Heal Inn (2018) — rated 6.5/10
Idol School (2017) as Self - Contestant — rated 9.0/10
프롤로그_프로미스의 방 엿보기 (2017)
Fromis's Room (2017) — rated 10.0/10
The Game Caterers (2021) as Self — rated 8.7/10
We See Winter (2019) — rated 6.5/10
Lee Mujin Service (2022) as Guest — rated 8.5/10
Jae Joong and Friends (2023)
fromis_9's Summer Night (2022) as Self
fromis_9's Autumn Night (2022) as Self
Duckbap House (2025) as Self
The Silence Of IDOL (2020) as Self

Watch Y:SY on FluxEntertainment

Watch every Y:SY movie and TV series free in full HD on FluxEntertainment. Browse the complete filmography, biography and highest-rated performances. Stream any title instantly with multi-language subtitles in English, Spanish, French, Arabic, Hindi and many more languages. Multiple streaming servers available for reliable playback with no sign-up required.

Y:SY is known for acting, born on 2000-01-22 in Seoul, South Korea. Their filmography on FluxEntertainment includes fromis_9 concert ＜LOVE FROM.＞ IN JAPAN, Welcome to Heal Inn, Idol School, 프롤로그_프로미스의 방 엿보기, Fromis's Room and more titles available to stream free.

Discover more about Y:SY and watch their best movies and TV shows on FluxEntertainment. Every title in the filmography is available to stream in HD quality with no download, no subscription and no app install needed. Whether you are a long-time fan or just discovering their work, FluxEntertainment has the complete collection ready to watch instantly in your browser.

Browse all Y:SY movies and TV appearances, sorted by popularity and rating. Each title includes multi-language subtitles, multiple streaming servers and full HD quality. Start watching any Y:SY film or series right now — completely free on FluxEntertainment.