Ngeun Rissaya

Charlie is a young girl who has memory loss. There is something about who she is that is a mystery. Danai, her father, told her to live as a guy to be safe from everyone who is after them. Irawat is Danai's friend who has a debt of gratitude to him because he saved his life in the past. When Danai was about to die, Irawat promised him that he would look after Charlie. So Charlie moves in with Irawat, even though he has no idea that she's a girl.
(Source: msbrightside at MDL)