Years after ending a friendship that became intimate, a mercurial doctor and a timid artist grapple with their feelings when they reconnect as adults.
A half-Thai Chinese-Maly orphanage girl, Bunga, lives with her granny Kimluan and makes a living by tapping rubber in the Southern part. Unfortunately, granny is deceived by Boss Wieng to sign the loan agreement and offer Bunga as insurance. When Bunga is about to become Wieng's mistress, she escapes and gets on the train to Pattani province and meets her first love, Tawan, there.
Twenty-five-year-old Ko dreams of becoming a teacher. As a child, she was saved by Chaichana, an event that made Ko want to be a good teacher like Chaichana. However, she comes to question what it is to be a good teacher. Ko becomes a teacher as she had hoped, but being a teacher is not easy when she has to face with the education system and the administration of Phatham School.
Bua, a medical student from today’s 5G era, is mysteriously swept back to King Rama III's reign – the golden era of Thai traditional medicine. Immediately thrown into an unknown world where she finds allies and rivals, her modern ways inevitably clash with old traditions.