Nai Hoi Tamin is about the difficult lifetime of the people of the East of Thailand – during a time when drought and poverty forced them to bring their buffalos purchasable round the center of Thailand. There was a robust leader, “Nai Hoi Tamin”, who led the large caravans for the long and sometimes dangerous trip. Along the way, that they had to affect many quite hardships, like robbers and thieves, illness, and therefore the difficulty of traveling. Kumkaew was the younger sister of Nai Hoi’s wife, Kumpang. Kumkaew was very kind, but had a robust and assured personality. She loved her sister considerably . However, she didn’t accept Nai Hoi’s job, because he left Kumpang together with her during his long journeys with the buffalo caravans. At the start of the story, Kumpang died of poor health and therefore the heartbreak of missing her husband an excessive amount of . After Kumpang died, Kumkaew kept the promise that she gave to her sister – that she would take excellent care of Nai Hoi and wouldn’t let any girls compared with him. She hid herself to secretly join the buffalo caravans. it had been too late for Nai Hoi to send Kumkaew back after he acknowledged that she was there. After a while , Kumkaew surprised herself as she fell crazy together with her sister’s husband, and he also grew to fall crazy together with her also .