Y:SY
Actor · b. 2000 · Seoul, South Korea
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.
Series8
TV8.5Talk Show"Lee Mujin Service" is a high-quality live content in which MZ generation's representative singer-songwriter Lee Mu-jin, along with other artists, provides the best music service that catches the eyes and ears of music fans around the world.
TV8.7RealityA webseries where Na Young Seok, a variety show producer, caters people his iconic games from 'New Journey to the West'.
TVComedyRealityKim Jaejoong hosts numerous stars who wants to be friends with him. With the goal of making 100 friends through the show, he will cook for his guests, get to know them, and hopefully forge new friendships.
TV9.0RealityIdol School is a reality girl group survival show. The program aims to form a 9 members girl group out of 41 female participants, training them in singing and dancing in the span of 11 weeks.
TVRealityEra after era, fromis_9 periodically attended Naver NOW radio shows only as guests, which changed when they got Summer Night to host. In it, the girls enact a group of friends who rent a share house together, play fierce party games, and laugh for hours on end.
TV6.5be together in winter
TVRealityA week after fromis_9’s Summer Night aired its last episode, Autumn Night was ready to start. Keeping the essence of the first season, the party games and laughter continue with the addition of a new segment dedicated to counseling fans, ending each episode on a tender note.
TV6.5While fall was quickly approaching, fromis gave us a last taste of their radiant charms by releasing Welcome to Heal Inn - A V LIVE web series about food, friendship and life but, above all, about healing.