Fuster became known for her television popularity after participating in the television reality shows, Combate, on the ATV channel and Esto es guerra [es] on América Televisión, as well as becoming the host of the radio program Onda expansiva on the radio station Onda Cero from 2022 to 2023.

[7][8] She studied primary and secondary school at the Admiral Guise Naval Lyceum School, located in the district of San Borja,[8] and obtained the bachelor degree in mass communication from the University of San Martín de Porres.

[7][8] Since she was a teenager, she dedicated herself to becoming a volleyball, and basketball player in the local championships of her category, with minor participation on the courts.

She then represented Peru and won Miss Teen Pageant International 2016 in Porto Alegre, Brazil.

[14] After winning the Miss Grand Peru 2023 pageant, Fuster participated in Miss Grand International 2023, held at the Phú Thọ Indoor Stadium in Ho Chi Minh City, Vietnam, on October 25, competing against other 68 candidates and won the main title,[15][16][17] making her the second Peruvian candidate to win the title and crowned in Vietnam.