Nalin gave birth to a pair of twins, a boy and a girl. She ran away with the Twins to protect them from her tyrannical and dangerous in-laws. Her son would be asked to join the company's business, which means he will be exposed to a corrupt and underground world. To protect them, she is left with no choice but to raise them as twin girls. She named her twins with girly names Kwan-Oei (Oei) and Kwan-Ma (Mind). The situation gets complicated when they reached adulthood and fall for the same guy, Nua-Mek. Nua-Mek is not able to tell the identity of the twins, especially when they switch roles. Until one day, the twins' secret is exposed, and their biological father insisted on taking Kwan-Oei back so he can inherit the family's business. What would become of the twins? Will Nua-Mek be able to tell them apart, and whom would he choose as his true love?