Kalaya Jirachaisakdecha

Monthai Mahataweit the a young man of 18 years old is handsome and amazing in every way whether it’s education or his family’s name. He is also the only son of a wealthy official Jao Khun Mahat and Khun Ying (Lady) Tap Tim. He is the lover of Viyada Hiranwat a pretty young lady who is approved by Khun Ying Tap Tim because she is equal in rank and status she also wants to them to get engaged before Monthai goes to school overseas.

Kate’s father owed lots of money to some gamblers so he ripped off Seit 's company to pay them back. Seit catches him and in order to pay the debt, Kate's father sells Kate to Seit because he knew that Seit can take care of his daughter. Kate moves into Seit 's house and she begins taking care of Seit's family.