Hi guys, Welcome to the Advanced Video Search Engine, and you are watching Lee Sung Kyung & Ahn Hyo Seop singing Romantic Doctor Teacher Kim 2 OST (Your Day by Gummy). That video is uploaded by soshiu at 2020-02-02T19:55:40-08:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [Sho6GjIlnCk]