New Komeito leader Natsuo Yamaguchi denounced the ruling Democratic Party of Japan for wavering in its policies and not keeping its promises with the public, and said his party has no plan to enter into a coalition with the DPJ.

With the Upper House election just weeks away, all political parties, including New Komeito, are gearing up for the first major battle since the DPJ seized power from the Liberal Democratic Party-New Komeito coalition last summer. The key lies in whether the ruling DPJ-Kokumin Shinto (People's New Party) bloc will manage to maintain a majority in the chamber.

"Our goal is to seek the judgment of the people over the DPJ's broken promises and to prevent the DPJ from gaining a majority," Yamaguchi said in an interview earlier this week.