Yukio Edano, head of the Constitutional Democratic Party of Japan, said Tuesday that the largest opposition force will go its own way and distance itself from the "power struggles" rife in Nagatacho, the nation's political epicenter.

Edano's criticism of Diet numbers games has underlined his opposition to the idea of absorbing or merging with other parties, including those that have views similar to the CDP.

"I know there are lawmakers out there whose way of thinking is very similar to ours. But once we give the impression that we're committing ourselves to a power struggle in Nagatacho, public confidence in us will soon evaporate," Edano told rank-and-file CDP members gathered at the party's first general meeting of those who won seats in Sunday's election.