A few hours after sundown last week, Thi Tu Luong was dragging her suitcase down a side street in Tokyo's business district, looking for the temple that would take her in for the night.

Luong, a 22-year-old Vietnamese worker, had just been fired from her job at a hotel in a hot springs town north of Tokyo.

After a few minutes of walking along the street, she saw Jiho Yoshimizu, who runs a support group for Vietnamese workers, waving to her from the entrance of a concrete building.