If you want to extend your short term visa as a tourist or family visit here in Japan, then this is what you should do.
The link below is the complete guidelines written in Japanese language for your reference. Application form and other documents links are also available below.
Application Guidelines
www.moj.go.jp/ONLINE/IMMIGRATI...
Complete requirements
www.moj.go.jp/ONLINE/IMMIGRATI...
Application Form
www.moj.go.jp/content/00129019...
Guarantee Letter (Mimoto Hosyousyo)
www.moj.go.jp/content/00000738...
Certificate for Payment of Fee
www.moj.go.jp/content/00009990...
21 май 2020