With energy policy turning into one of the focal points of Sunday's Lower House election, more than 1,000 people opposed to atomic power staged a march in Tokyo on the eve of the poll to demand a nuclear-free society.

"Japan will face a crossroads tomorrow," Yuko Tanaka, a professor at Hosei University, told a crowd of hundreds who gathered in Hibiya Park, Chiyoda Ward, on Saturday ahead of the march.

"Depending on the result of the election, I feel that Japan could wind up in hell," she said, voicing fears that the final tally may fail to reflect the views of many citizens who want to see Japan's nuclear plants scrapped.