Tanatorn is a businessman in furniture manufacturing, and is sober and arrogant. He always dreams of one woman who has been in his mind for a long time. That woman is Kewalin, who helps her brother and friends to work as a volunteer for the Ruam Katan Yuu Foundation charity. When Tanatorn saw Kewalin the first time, he felt a flash of lightning in his heart. One night, Tanatorn has an accident and hits his head hard on the ground. He is confused and believes that he is someone called "Mek" and Kewalin is a person called "Kaew". He feels like they both are reincarnates from an ancient time. The next morning "Mek" disappears and Kewalin applies for a job at Tanatorn's company. He cannot remember Kewalin, but he senses she is the woman in his dreams. Kewalin is surprised as she thought that Tanatorn would remember her, and the love of the 2 people from different eras continues.