Burcio's route to the professional game has been far from straightforward. His early years at Real Madrid were followed by disappointment, a move to Rayo Vallecano and eventually a decision that took him away from Madrid and towards Vigo.
It is there that his career has begun to take shape.
Burcio was part of a highly regarded Real Madrid generation that also included Víctor Valdepeñas, now at Fiorentina, Daníel Gudjohnsen, the son of former Barcelona striker Eidur Gudjohnsen, Jacobo Ortega and Iván Alonso.
While several members of that group have gone on to establish themselves elsewhere in professional football, Burcio's departure from Madrid came after a difficult period in his development.
He missed out on the Real Madrid squad for the LaLiga Promises tournament in Arona in December 2018, where Madrid eventually lifted the trophy. A few months later, the club decided not to renew his contract.
The decision came at an important stage of Burcio's development. He was a relatively small and physically immature midfielder at the time, but his understanding of the game had already made him a leader within the team.
He wore the captain's armband and was regarded as the brain of the midfield, leading without being particularly vocal.
Rayo Vallecano offered him another route, but the move did not provide the stability he needed. Celta, meanwhile, had already been watching him.
Their interest dated back to April 2018, when Burcio represented Madrid at the national Under-12 tournament held at A Madroa, Celta's training complex.
The Celta scouting department, led by Álex Otero, was impressed by the midfielder. Otero and Alejandro Lago later watched Burcio again at a youth tournament in Miranda de Ebro, strengthening their belief that he possessed qualities Celta did not have elsewhere in their academy.
When Madrid decided not to renew Burcio, Celta Vigo had an opportunity to act.
The move was complicated by the arrival of the Covid-19 pandemic, but Burcio eventually made the journey to Galicia and began a new chapter at Celta.
For a 14-year-old, the move meant leaving home, adapting to a new city and entering a completely different football environment. He handled the transition and gradually became an important figure within the academy.
His development accelerated at Celta Fortuna.
Burcio became one of the key players in the side that secured a historic promotion to Segunda División, establishing himself as a physically imposing central midfielder with the ability to influence matches from deep.
The player who had once been a smaller midfielder at Valdebebas had developed into a 1.87-metre presence in the centre of the pitch.
His game has retained the qualities that first attracted Celta. He can carry the ball with a long stride, recover possession and dictate play from a deeper midfield position. His positioning and ability to read the game have remained central to his development.
That progress has brought him increasingly close to the first team.
Claudio Giráldez has already given Burcio opportunities at senior level, and the midfielder made his LaLiga debut in January 2026. He has also featured in European competition and is now part of the wider first-team picture.
The timing of his latest opportunity is significant. Miguel Román's injury has created another opening in midfield, giving Burcio a chance to turn promising appearances into a more permanent role.
His current status is a long way removed from the uncertainty he experienced as a teenager.
Burcio is now 19, has a contract with Celta running until 2028 and has already accumulated senior experience with both Celta Fortuna and the first team.
There is still a considerable distance between emerging as a promising midfielder and establishing a long-term career in LaLiga. But Burcio has already navigated one of the most difficult stages of a young player's development.
Real Madrid decided not to continue with him. Rayo did not become his destination. Celta did.
The decision to leave Madrid for Vigo may ultimately prove to have been the turning point in a career that is only now beginning to reach the level once expected of him.