Kim Seo-yeon김서연 Born September 19, 1999 · 27 years old6 series · 1 films Open in my diary TV series with Kim Seo-yeonPhantom School2022 · Sung So-jinTomorrow2022 · Choi Min-youngJinx2021 · Chan MiImitation2021 · Hyun Oh's Ex-girlfriendRomance, Talking2020 · Park Da YeonThe Guilty Secret2019 · So Mi Ji Films with Kim Seo-yeonMen of Plastic2022 · Doo-bi