I've recently moved to Tokyo and plan to live here for at least a year. I'm looking for a job now as an English teacher and it would help a lot to have a mobile phone number. I've seen the prepaid SIMs around, but they are very expensive and temporary. Could anyone please give me advice on how to get a cheap phone plan as a foreigner who only speaks English? I'm worried that even if i knew a phone company approach, it would be too hard to set up, since my Japanese is extremely weak.