Prime Minister Sanae Takaichi and Japan Innovation Party (Nippon Ishin no Kai) leader Hirofumi Yoshimura agreed Monday to submit a bill during the current parliamentary session that will reduce the number of Lower House seats by 10%, fulfilling a key goal of their coalition agreement.

Introducing and passing a bill to reduce the number of parliamentary seats in the lower chamber was a core demand for the JIP in exchange for agreeing to a coalition government with Takaichi and the Liberal Democratic Party.

“Takaichi and I agreed to submit a seat-reduction bill during the current parliamentary session,” Yoshimura said on his X account. “To ensure the bill’s effectiveness — and taking into account the opposition parties’ views — we agreed on a plan that will reduce seats by 10% in single-seat constituencies and proportional representation seats, rather than reducing seats only in the proportional representation system.”