<p>Yukio Edano, the head of Japan's main opposition Constitutional Democratic Party, said on Tuesday he would step down to take responsibility for the loss of parliamentary seats in Sunday's lower house elections, public broadcaster <em>NHK</em> said.</p>.<p><strong>Check out latest DH videos here:</strong></p>
<p>Yukio Edano, the head of Japan's main opposition Constitutional Democratic Party, said on Tuesday he would step down to take responsibility for the loss of parliamentary seats in Sunday's lower house elections, public broadcaster <em>NHK</em> said.</p>.<p><strong>Check out latest DH videos here:</strong></p>