One of our daughters had a fever yesterday, resulting in higher than 105 F even after taking a pain killer.  I took her to the clinic already but needed to call a doctor in the midst of night, which I tried for the first time FastDOCTOR.

If you live in central Tokyo, Kanagawa, or Osaka, there is this service available. I had a doctor visit us 2 hours after I contacted, 12am, and she checked our daughter's blood pressure, hear beat, and prescribed some medicine. And because she is still young, I didn't  have to pay anything but a tiny bit of transportation fee. One of the great systems we have in Japan is National Health System.