HomePeople Biography and filmographySeo Dong-geun Biography unavailable on TMDB. Movies (1)TV shows (2) Photos Movies (1) The Initial Memories2025 · Dong-geun TV shows (2) 3XLOVE: Nerd Guy in Love2026 · Chan-gyu 착한 여친의 나쁜 연하남착한 여친의 나쁜 연하남 · Park Hae-su