Alejandro Romero Gamarra

Huracán

Born in Ciudadela, Kaku began his career in the youth ranks of Huracán. In 2013, Kaku made his professional debut for Huracán in the Primera B Nacional. He scored his first goal for the club on 12 October 2013 in a 4–1 victory over Aldosivi. On 14 December 2014, Kaku helped Huracán return to the top flight after three seasons in the Primera B Nacional, scoring the decisive second goal in a 4–1 victory over Atlético Tucumán. With the promotion to the top flight, Huracán concluded a very successful season, having won the 2013–14 Copa Argentina a few weeks prior in a penalty shoot-out over Rosario Central with Kaku appearing as a second-half substitute. This was the club's first official title in 41 years. On 3 February 2015, he scored his first goal in the Copa Libertadores against Peruvian club Alianza Lima in a 4–0 victory. On 1 March 2016, Kaku led Huracán to a historic victory in the Copa Libertadores over Peñarol at the Estadio Centenario, scoring the lone goal in the 1–0 triumph. A few weeks later, on 24 March Kaku scored his first goal in the Argentine Primera División in a 2–0 victory over Aldosivi. On 18 July 2016 he helped Huracán advance in the Copa Argentina scoring the opening goal in a 2–1 victory over Central Córdoba. On 27 May 2017, he scored an injury time equalizer from the penalty spot in a 1–1 draw with Boca Juniors. On 1 June 2017, Kaku scored another important goal for his club, this time an injury time goal in a 4–0 victory over Deportivo…

Kaku was born in Argentina to Paraguayan parents. He was selected by Argentina's U-20 manager, Humberto Grondona to participate in the 2015 FIFA U-20 World Cup in New Zealand. On 16 May 2018, Kaku announced his desire to file a one-time switch request with FIFA to play for Paraguay. The move was approved by FIFA on 23 May 2018, and he was immediately called up to the Paraguay national team for a friendly against Japan. He made his competitive debut for Paraguay on 12 June, as a substitute in the second half of the friendly match against Japan. On 1 June 2026, he was named by head coach Gustavo Alfaro in Paraguay's 26-man squad for the 2026 FIFA World Cup.

Club

As of match played 16 May 2026

International

As of 12 June 2026

Scores and results list Paraguay's goal tally first.

Kaku is the older brother of the football 7 and futsal player Facundo "Facu" Romero Gamarra, who has played in the Kings League.