Optionally, you can print off the [http://www.moj.go.jp/content/000007425.pdf Extension Application Form] (PDF), fill it out in advance, and bring it with you.  However, you can also fill it out at the immigration bureau.
 
Optionally, you can print off the [http://www.moj.go.jp/content/000007425.pdf Extension Application Form] (PDF), fill it out in advance, and bring it with you.  However, you can also fill it out at the immigration bureau.
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