"Arm" Khunakorn Chaisin is a model, actor and manager of Bangkok Clinic in Chiang Mai. Originally from Chiang Mai, he graduated with a degree in physical education from Thailand National Sports University Chiang Mai. He competed in Mr. World Nan 2019 and Mr. Universe Nan 2020. In August 2021, Arm married "Donut" Kornkanok Sanchai. Together they have one child. (Source: MyDramaList) Watch drama online for free.