Ryu turned professional in mid-2019 and joined the LPGA of Korea Tour after success on the development tour. She won the 2019 Jeju Samdasoo Masters and successfully defended her title in 2020, her official rookie season, where she earned the Rookie of the Year title after earning over 628 million won, second on the money list behind only Kim Hyo-joo.[3]
In 2021, she won two more KLPGA titles and in 2022, notched her fifth title, and was second in Player of the Year points and second in scoring average with 70.57.[3]
Ryu won the 2022 LPGA Q-Series to join the LPGA Tour in 2023. She became the third player from Korea to take medalist honors at LPGA Q-Series, joining Lee Jeong-eun (2018) and An Na-rin (2021).[4] She finished tied 7th in her debut, at the LPGA Drive On Championship.[5] Ryu was in contention at the 2023 U.S. Women's Open and finished in 8th place.[6]