Montemayor was born and raised in the fictional province of San Dionisio, he married Iluminada, the daughter of a wealthy and prominent political family in the province for his future ambitions, to whom he has three children namely Ernestina, Alberto and Paloma. Leandro also has two other families, Czarina, the original mistress and mother to Amanda and Lucinda. And finally, Alicia, the love of Leandro's life and mother to Rosa Camilla, Leandro's favorite daughter. The story begins with the failed murder attempt on the governor's life and consequently makes the three women and all their children suspects in the investigation. This crime mystery angle provides the backdrop to the love story of Rosa Camilla and Carlito, the son of Leandro's political rival, Congressman Carlos Valiente.
Leandro started as a mayor of a town in the fictional province of San Dionisio, then Governor of the Province of San Dionisio with the massive political machinery and influence of his wife's family, he started a dynasty in which he became rivals with Congressman Carlos Valiente. But a tragic event came to Leandro, when the Valientes were killed in an ambush that blamed to Montemayor, that led to massive demonstrations and riots against Montemayor by supporters of the Valientes, that led to a case against him of murder. He was tried and found not guilty of the charges and in an ending twist of the case, it was discovered that Leandro's son, Alberto ordered the ambush. After the victory in court, Leandro attained national popularity that led to his decision to run as a Senator of the Philippines. His popular slogan when campaigning for the Senate was "Ngayon sa Senado, Bukas sa Malacañang!" pertaining the official residence of the President of the Philippines, the Malacañan Palace, hinting a run to the Presidency in the near future. But another crisis emerged from his family when his position as Governor will have to be vacated because of his Senate run. Two emerged as potential successors to Leandro, Amanda, Leandro's Chief of Staff and his daughter-lawyer who helped him win his cases in court and his legal wife, Iluminada, who told Leandro of her intention to run, giving credence to her family connections in politics. Initially, Leandro did not choose from the two, he originally chose his third wife, Alicia, whom he described as the one people love. But Alicia did not accept Leandro's invitation to run. Leandro endorses Iluminada to run as Governor of San Dionisio against Justice Romina Salgado, Valiente's mother-in-law. In the end of the elections, Leandro won a seat in the Senate and Iluminada was defeated by Romina.
Senate Years
During his Senate years, his Alzheimer's disease started to develop, leading to his loss of certain memories regarding events and even suffered blurred vision known only to his personal secretary and legislative adviser.
Presidency
He ran as president against Tomas Locsin, a billionaire businessman who became Czarina's husband, but when Leandro won the presidency, Locsin plotted a coup against Montemayor along with some generals in the Armed Forces of the Philippines months after he became President. With Locsin's money and the support of certain elements of the military, Montemayor was toppled. During his campaign for the presidency and even during his presidency, he kept his disease from the public.
