Born and raised in the Buena Vista area, now known as Playa, Yusa split her time between her love of music and her love of the sea. Influenced by her father, who was a sailor, Yusa started playing guitar at a young age, moving on to piano and bass lessons. While attending the Amadeo Roldan Conservatory with contemporaries such as Roberto Carcasses, Yusa would often be found performing in school corridors. From there she joined an improvisational jazz quintet called Quasi-Jazz.