Asakura Keita used to be a grade school teacher who didn't care about politics, though after his father's death he was forced to run for the election as his successor. From that point his life changed completely by entering to the politicians world.
Although the stories are quite different, both dramas have this kind of "it's-a-wonderful-world" approach, where everything turns out good in the end.
Also, Kimura Takuya stars in both of them.
I believe that people who loved one of these dramas will like the other as well.
Both are about a normal, but foolishly idealistic and somewhat inspiring person who enters the world of politicians, because of his dreams to change the politics and protect the people in his country. It's about his growth into a politician and the way he/she is slowly influencing others with his ideas.