A decent hotel substitute
In Tokyo I have used internet cafes that don't even ask for identification. In Okayama many of them require you to have a members card which makes some sort of identification necessary. They charge by time intervals but it depends on the establishment. 10-15 minutes, 30 minutes or hourly rates are normal. Many have 3 hour and overnight set deals. Drinks and ice cream are free but everything else is extra.
Kenji
Japan