Then, in September, he competed in the 2018 FIVB Volleyball Men's World Championship, jointly hosted by Italy and Bulgaria. Nishida did not play in the game the next day due to a minor foot injury, and the team lost straight away. The opening match of the season was moved up by one match, so there were three days left before the second match against the Dominican Republic, and Nishida returned to the court in the third set. The team won in straight sets but lost the next match against Slovenia and the match against Belgium, in which Nishida returned to the starting lineup, to finish with one win and three losses.