New Komeito President Natsuo Yamaguchi said Friday his party will continue to act as a counterweight to the Liberal Democratic Party if the senior coalition partner aggressively pursues revising the war-renouncing Article 9 or exercising the right of collective self-defense after the Upper House election.

"If the LDP shifts toward the direction where the public is wary (such as revising Article 9), we will side with public sentiment and control the LDP" even though LDP has far more Diet members, Yamaguchi said in an interview with The Japan Times.

The New Komeito chief will be seeking re-election to the Upper House next month.