07-15-2009, 03:00 AM
If you do nothing but eat and sleep and pay utilities, I would say that you could be safe with an income of $1000, or roughly ¥100,000 a month. Probably a little more than you need, but trust me, you will want that slack in case you screw up. Always put a few hundred bucks off to the side for "incidentals" or a "rainy day."
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