Krong Phet

A Life on the Run Baibua is a spunky and mischievous 18-year-old girl whose life has been defined by instability. Her mother, Lakkhana, was never intentional about having her and offers only one answer when asked about Baibua’s father: "I don't remember." To survive, Lakkhana relies on underground lotteries and high-interest money lending circles, forcing the mother and daughter to move houses every two years to escape debt collectors.
One day, facing a debt of 500,000 Baht, Lakkhana orders another midnight flit. This time, Baibua is heartbroken to leave behind her best friend Prang Kaew and Manoon, a scruffy musician who has a crush on her and always looks out for her.
The Castle in the Fields The pair settles in a small rental house on the outskirts of town. From her front door, Baibua gazes at a massive white mansion that looks more like a dream castle than a home. She has no idea that this "castle" is destined to become the Diamond Cage that will imprison her.
The mansion belongs to Songphop, a widowed billionaire who lives with his three adopted sons: Kitti, Than, and Phoradet. After a tragic accident, Songphop is left partially paralyzed and confined to a wheelchair.
An Unexpected Proposal Conflict begins when Rungmanee, Songphop’s niece, hits Baibua with her motorcycle. Instead of apologizing, Rungmanee blames Baibua for being clumsy. Than takes Rungmanee’s side, causing Baibua to instantly despise him.
However, when Songphop finally sees Baibua, he is stunned. She is the spitting image of his beloved late wife, Suree. Driven by obsession and a desire to have a "replacement" for his wife nearby, he announces his intention to marry Baibua. This news outrages his sister Kanda and niece Rungmanee.
Life Inside the Cage Baibua agrees to enter the "Diamond Cage" under three conditions:

1. The marriage remains a secret from the public.
2. There is no legal marriage registration.
3. She maintains her personal freedom.

Inside the mansion, a complex web of emotions unfolds:

• The Rivalry: Than and Baibua constantly bicker, but a secret attraction begins to grow between them, sparking jealousy in Wilai, Songphop’s nurse who loves Than.
• The Jealousy: Than becomes frequently envious of Manoon, who still visits Baibua. Meanwhile, Rungmanee is jealous of Baibua because Kitti seems to show her special interest.
• The Family Secret: In a shocking twist, Kanda reveals to Rungmanee that Kitti is actually her biological son—making him Rungmanee’s brother. Kanda had planted him as an adopted son to ensure Songphop’s entire fortune stayed in her bloodline.

How long will Baibua have to endure this "Diamond Cage" filled with confusion, greed, and love? And how will the tumultuous relationship between her and Than finally end?