Directed by Dado C. Lumibao, Francis E. Pasion and Rory B. Quintos, it stars Kathryn Bernardo, Daniel Padilla, Enrique Gil and Khalil Ramos.
As a child, she was brought to the Philippines after Ashi Behati (Gretchen Barretto), a royal and a high-ranking influential official who desires to rule Yangdon with her son Prince Jao (Enrique Gil) tries to kill her and her mother.
Mikay meets her eventual best friend Kiko (Khalil Ramos) who harbors a crush on her, and Gino (Daniel Padilla), an arrogant teen who comes from an affluent family.
Winning a trip to Yangdon, Mikay meets Jao, a Yangdonese royalty and crown prince, and the two of them become close as he tours her around without knowing that she is the missing princess.
Knowing Mikay is in need of money, he offers her a deal to come to his grandfather's party with him and pretend to be his girlfriend, and he will pay her a huge amount in return.
Things gets complicated as Gino's grandfather decides to take away Mikay's scholarship, making the two agree yet again on another deal which is to ignore each other, and act as if the other does not exist.
Later, Jao visits the Philippines with his royal butler Han (Ketchup Eusebio), to return the camera that a girl lost in Yangdon.
However, Mikay was rejected by both of the boys' families (Gino, by his father and grandfather, and Jao, by his mother, Ashi Behati.)
King Anand finds a suspicious letter with a mark of an eagle from the Eastern Kingdom and follows Behati to investigate.
After a visit to the King's Library, Gino learned that his mother Alicia had a relationship with Dasho Kencho (Christian Vasquez), and that he had an older brother, Jao.
Ashi Behati did not tell anyone the true identity of Jao, but it was part of her plan to get back the Kingdom of Yangdon.
In the end, Dasho Jao won, showing that he is the next heir of Yangdon and that he is loyal, dedicated and that he loves Princess Areeyah.
The Royal Engagement was a time of celebration for Yangdon, with Dasho Jao and Princess Areeyah as the next heirs to the throne.
Jao wakes up from his injuries and realizes he is taken to the Philippines where he was brought in by one of the citizens of the East Kingdom named Salve (Ces Quesada).
Jao learns that it was Shivaji who saved him from going to the Gulag and is slowly poisoned by his feelings towards King Anand and Mikay and all the Citizens of the West Kingdom.
She pretends to steal his shades and lead him into a garden decorated to look like a hotdog stand, wearing the blue bear suit that Gino wore when they went to Enchanted Kingdom.
And soon Gino finally snaps when he sees Jao mistreating Mikay and punches him right in the face, ensuing a quarrel between the two brothers.
At the Maghirang household, Mikay learns about the fact that her father King Anand is scheduled to come at the Philippines.
Back at the Santol Village, Shivaji visits and asks Jao about making their move, and reminds him of being the next King.
Despite Mikay's requests to look for Gino and her father, she is told to stay strong because a lot of her people need help from lack of food and injuries.
As Gino's injuries get worse and is suffering more and more in prison, the members of the Drukpah beg for the guards to help him but in instead Jao comes.
Mikay notices a blood-stained white tee shirt that is Gino's and broadcasts a worldwide speech about what is happening and Yangdon.
Mikay accepts Jao's proposal in return for Gino and her father's welfare and for the East and West Kingdoms to be able to finally get together.
Gino and Mikay spend their last night together full of love and happiness and make promises to each other by lighting floating lanterns in the sky.
Princess and I, then coming as working title You're Always in my Heart, was announced during an ABS-CBN trade event as one of the upcoming television series of the network to be shown on primetime.
Along with Kathryn, other teen actors to star include her Growing Up onscreen team-up partner Daniel Padilla, Pilipinas Got Talent Season 3 Finalist Khalil Ramos, and Enrique Gil, whom she co-starred with in the movie Way Back Home.
Other cast announced include Dominic Ochoa, Yayo Aguila, Niña Dolino, and Sharmaine Suarez.
[6] In an interview, Bernardo said that it was an unforgettable experience to shoot abroad in what is anticipated to be one of ABS-CBN's biggest and grandest teleseryes for 2012.
Notably also, to make the fictional kingdom seem more authentic, while shooting, actors portraying Yangdonese characters had to learn how to deliver their lines in Dzongkha, the language of the Bhutanese, and they would dub themselves in post editing.
[8] The Princess and I OST soundtrack was released in three parts under Star Records, led by the show's themesong, Nag-Iisang Bituin by Christian Bautista.