Her long gray hair reflected a faint silver glow in the autumn sun, and her eyes were narrow and light green.
Due staying a long time at the coast, her skin got slightly rough, and was not longer white as all the other women of the royal family.
Garcia is farsighted, ambitious and ruthless person, willing to go to any length to achieve her ends.
After becoming a resident of Roland's Soul Apartment, Garcia becomes much more earnest and works to protect the people. She believes in fighting for the protection of the innocent. She believes that protecting the weak is its own reward, and chides Roland when she thinks he is only fighting for money.
Five years before king Wimbledon III announced Royal Decree on the Selection of Crown Prince Garcia settled in Port of Clearwater to establish Blacksail Fleet. Since then she had been preparing to compete for throne. To guarantee Tyre's obedience Garcia kept her sister. She ordered to poison Roland Wimbledon.
While awaiting Blacksail Fleet arrival, Garcia discussed Royal Decree and her future goals. She was dissatisfied that assassination attemt on Roland failed and ordered to repeat it when Months of Demons come.
After several battles with Timothy and discovering the Church's plan, Garcia decides to give up on the battle for the throne and takes over the Kingdom of Eternal Winter from the church. During the battle, she captures, tortures, and executes Archbishop Heather.
She joins an alliance with the Kingdom of Wolfsheart and helps defend their King's City from the church. During the battle, however, their forces are overrun, and she tries to retreat back to the Kingdom of Eternal Winter. Before she can, her God's stone of retaliation is disabled by Isabella, and she is absorbed by Zero.
Garcia later appears in Roland's Soul Apartment. She lives in room 0827 and is a martialist. Garcia seems to be much more earnest in this world and protects the people from Fallen Evil. After learning that Roland also is able to us Heaven's Will, this world's version of magic power, she tries to convince him to join the Martialist Association and defend the people.
Garcia had a high intelligence; she claimed that unused gold is no different from stone and invested large amounts of it into her fleet. She was a skilled tactician, able to reasonably predict Timothy's strategy and use it against him.
Garcia was never fond of her younger siblings, shunning them from all the games she played with her elder brothers.