[5] At the World Open Shogi Championships held in Minsk, Belarus in July 2013, Itō finished 9–0 to win the tournament as a fifth grade elementary school student.
[6][7] Itō entered the Japan Shogi Association's apprentice school in September 2013 at the rank of 6-kyū when he was a fifth grade elementary school student under the guidance of shogi professional Toshio Miyata [ja].
[2][3][4][8] Itō was promoted to the rank of apprentice professional 3-dan in April 2018 and obtained full professional status and the rank of 4-dan after winning the 67th 3-dan League (April 2020 – September 2020) with a record of 15 wins and 3 losses.
[2][3][4][9] In September–October 2021, Itō defeated Yūsei Koga 2 games to none to win the 52nd Shinjin-Ō [ja] tournament.
[13] In December 2023, Ito defeated Akihito Hirose to win the challenger's tournament for the 48th Kiō Tournament, and advance to the title match against Fujii; Itō had actually lost to Hirose in an earlier round, but advanced to the finals through the loser's bracket, which meant he needed to win two games in a row as opposed to Hirose who only needing to win one of two games.