Guidelines for Permission for Change of Status of Residence and Extension of Period of Stay

The Immigration Control and Refugee Recognition Act (hereinafter referred to as “Immigration Control Act”) stipulates permission for change of status of residence and extension of period of stay shall be granted only when there are reasonable grounds to allow the Minister of Justice to deem it appropriate to do so. The decision as to whether or not there are reasonable grounds is mainly left to the discretion of the Minister of Justice, and such decision is made totally in view of various factors, such as activities in which an applicant intends to engage, the applicant’s residential status and necessity to reside, taking into account the
requirements listed below.

http://www.moj.go.jp/content/001212284.pdf