Full actor profile
Y:SY
Acting
13 known credits
0.4 popularity score 26 years
Biography
About Y:SY
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.
She made her solo debut on November 17, 2025, with the digital single Naked.
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Career at a glance
Y:SY across film and television
13credited titles
1movie credits
12TV credits
2023–2025screen career span
Recent movies and TV shows
Article
TV download guide
Pokémon (1997) — Episodes and downloads
Join Ash accompanied by his partner Pikachu, as he travels through many regions, meets new friends and faces new challenges on his quest to become a Pokémon Master.
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Movie download guide
Misty Green (2026) — Download guide
Years after her Hollywood breakthrough, a talented actress whose career has stalled fights for her second act.
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TV download guide
Against The Sky Supreme (2021) — Episodes and downloads
The entire universe is divided into the inner universe and the outer universe. The two universes are enemies of each other. The outer universe is ruled by demons, and the inner universe is divided into The Realm of gods, the Eternal Realm, and the Mortal Realm. In the universe, …
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