"We're an easy target for recruiters. We turn up here with all our bags, wheeling them around and around the station and we're easy to spot. Then they say to us: 'Are you looking for work? Are you hungry?'"
Activists say homeless people are flocking here from across Japan to look for work in the tsunami-devastated north.
But the safer jobs are now in short-supply.
Yasuhiro Aoki is leader of this homeless support group.
Many workers are reaching their radiation limits, he says, so ther