Ponwalai, Yodthian's sister, is Prakob's mistress. He devoted his money and himself to her, but she already had another man. When Prakob finds out, he dies of a heart attack and leaves lots of his assets to Ponwalai, which results in his son Noppharuj being furious at both her and Yodthian. Noppharuj chases after them to get revenge, and Yodthian lets him do whatever he wants because she feels guilty over her sister's actions.
Mia Luang is a story about a very wealthy, famous, well-educated, and respected couple. Everyone assumes that they're happily married and live a very good life, while in reality, they have a lot of problems. The problems start with Aniroot, the husband who is a player and has a lot of mistresses. His wife Wiganda is a smart woman who endures his misbehavior and his many women. Among his women, there is only Ornin who seems to openly come in between the couple without shame. Mia Luang literally means Main Wife, while his mistresses are called Mia Noi, literally Small Wife or Minor Wife, in Thai.
Chomjan is arrested when Ratti catches her selling fake jewellery. Ratti is a renowned jewellery designer and a famous car racer. He loathes liars and thieves and seizes any chance he can to put these people in their places. When Ratti catches his girlfriend cheating on him with his stepbrother, he flees to Italy. He returns months later when his stepmother threatens to sell one of his late mother's favourite necklaces. Filled with rage, Ratti storms into his ex's wedding and steals the necklace. Chomjan is released from jail and walking around homeless when she's caught up in Ratti's escape, causing the security to cuff both of them together. Tied together by force, Chomjan must help Ratti run from the police this time.