Transnational romance-Rainbow's adventure in Thailand

Rainbow, a Chinese girl , went to work in City S where her parents are located after graduation. Her work and life were plain and simple. Until the company sent her to work in Thailand, everything changed. Her life became colorful, especially when she met him in Bangkok who was two years younger than her, Mike, handsome and cool. Mike, a Chinese-Thai mixed race, working hard for his dream in Bangkok. He done several jobs, not only a band guitarist, but also a waiter for various shops such as a musical instrument shop, and also a photographer and designer. He arranged his life to the full. The two met unexpectedly in a mall in Thailand, blaming each other, making fun of each other...but then they met each other inadvertently and entangled each other. They both have grown to loving and supporting each other, everything goes smoothly. Until "he" and "she" appears, how will they choose? Will they become each other's past or each other's end on the journey of life?