Cá, who moved to Spain from Portuguese club Amora FC in the summer of 2025, made 27 appearances in all competitions for Levante U19s last season, scoring four goals.
He previously made his senior debut for Amora in the Campeonato de Portugal during the 2024/25 campaign, having impressed the previous year with 13 goals across 31 appearances at youth level.
On his signing, Afner said: “The project here, the lifestyle, and the club’s ambition made this the right move for me.
“I’m a forward who likes to find space, link play and work hard for the team. Scoring goals is a big part of my game, but my focus is always on contributing to the group, whatever helps the team win."