Waan Jai Taai Krua(2011)

Original title: หวานใจท้ายครัว

Sounding very much like the fairytale Cinderella, there were once two best friends: Preao, an effervescent and confident girl whose stepmother and step-siblings were constantly on her case and Orn, a quiet young girl who was treated like a slave by her malicious and calculating Aunt and a philandering Uncle.