Myrtle Sarrosa was born to Rodolfo Sarrosa Jr., a Filipino politician and Tam Porlucas, a Filipina accountant. Sarrosa was born on December 7, 1994 and raised in Barotac Nuevo, Iloilo, Visayas, Philippines. At the age of fourteen, Sarrosa started participating in Cosplay Conventions and won several awards for cosplaying in the Philippines.
By the age of fifteen, Sarrosa served as the Sanggunian Kabataan (English: Youth Council) President of her municipality, Barotac Nuevo, Iloilo, Philippines where she became the chairman of the Committee of Youth and Sports. Before joining Pinoy Big Brother: Teen Edition 4, Sarrosa was an accounting student of the University of the Philippines Visayas but transferred to the university’s main Diliman campus in 2013. Sarrosa worked as full-time actress and host while attending classes in the UP College of Mass Communication. Sarrosa graduated cum laude from the Philippines’ top university with a degree in BA Broadcast Communication. Aside from receiving Latin Honors, Sarrosa was awarded multiple times for her research in cosplay’s history in the Philippines.
Sarrosa was dubbed Cosplay Cutie ng Iloilo, Sarrosa entered the house of Big Brother on Day 2 together with the other female housemates. On Day 91 at the Malolos Sports and Convention Center in Bulacan, she was declared the Big Winner after garnering a massive 33.92% percent of internet votes and triumphed over Karen Reyes with 11.91%, Roy Requejo with 9.38%, and twins Jai and Joj Agpangan with 9.26%.
In her private life, She previously had a relationship to Sen. Grace Poe-Llamanzares’ son Brian but separated before the 2016 Presidential Elections.