Arakaki excelled with Universidad San Martín during the 2015 Torneo de Promoción y Reserva, the national under-20 league, prompting his call-up to the first team by manager José del Solar the following year.
[3][4] He made his Peruvian Primera División debut on 10 February 2016, scoring the game-winner in the 47th minute of a 2–1 victory over Comerciantes Unidos.
[7][8] He made his continental debut during the 2019 Copa Libertadores qualifying stages, scoring with an impressive strike from outside the box in their 2–0 home victory over Caracas FC on 19 February.
He was part of the team that won the 2013 South American U-15 Championship for Peru, their first-ever title, while going undefeated in the tournament.
[15] He scored a brace in their 4–4 draw with Argentina and added another goal in their semi-final victory over Chile.