The Secret of Us – Kisskh English Subtitle

Dr. Fahlada, whose alias is angel doctor, was left with a scar on her heart by old love, causing her to be unable to open up for someone anymore. She’s reunited with free-spirited Earn, the ex-girlfrend who hurt her heart the worst, when she become the brand spokesperson for the hospital where Fahlada works.

(Source: LakornUpdate Facebook; edited by MyDramaList)

~~ Adapted from the web novel "Jai Son Rak" (ใจซ่อนรัก) by Meenam (มีนาม).