To support her sister and Alzheimer's-afflicted mother back in Thailand, Mai Ratima (Park Ji-soo) enters into an arranged marriage with mentally challenged Sang-pil (Lee Jun-hyuk).
Untuk mendukung kakak dan ibunya yang menderita Alzheimer kembali ke Thailand, Mai Ratima (Park Ji-soo) merencanakan pernikahan dengan Sang-pil (Lee Jun-hyuk).