phew what a story... Father swaps his daughter with someone else's son, because the grandad wanted a grandson, but when he passes away, he starts to look for his daughter bec he doesn't want his inheritance to go someone else.

Rome (Weir) is friend's with Kamontat(the father)'s brother, he coincidentally meets Tien (main girl) who disguises herself as a boy, he took her home, they found a necklace and ring on her the house maid accused her of being a thief, but Rome's friend suspected she might be his niece, before his death he asks Rome to bring the justice..

Rome teaches Tien how to act & behave like a lady, he falls in love with her..

House maid is not happy that Rome likes Tien, she doesn't know who she's in real.

Housemaid helps Rome's ex to get Rome back which Rome is not interested, she constantly reports what Rome does, where he goes etc....
The ex that left Rome when he gone broke now he's rich again so she wants him back..

Kamontat is a man that he can't keep his things in his pants, he sleeps with his secretary, that secretary also sleeps with the son.. She fell pregnant from the dad but tells the son that baby is his.

We don't see much of kiss as Weir is a 40 year old man in the lakorn (in real he was only 25), Davika is a teen 19 at the time

Second there are people who are trying to kidnap her all the time...

it goes on and on ..........