The government talks about creating a society where every woman can play an active role, but the chronic shortage of day care is pushing some entrepreneurs to take things into their own hands.

When Megumi Katanuma got a divorce in 2011, she faced a harsh reality: nowhere to live, no job, and two teenagers in junior high and high school. She earlier held a managerial position at a firm run by her husband.

"I knew I had to work," she said in a recent interview.