All of a sudden, Prime Minister Taizan and his carefree son Sho find their bodies switched around. They have no idea why nor how to turn back. Now Sho has to attend the Diet as Prime Minister. He cannot even read the words as he speaks as Prime Minister...but the diet members and the people are gradually moved by his straightforward opinions and things begin to change...
Meanwhile, Taizan, the Prime Minister, is now a college student undergoing numerous job interviews. But he cannot pass the interview. And things become more confusing as he meets Sho’s ex-girlfriends.