“Student” status, usually 2 years at most

To study Japanese on the “Student” status of residence, you must enter a Japanese-⁠language institution designated by the Ministry of Justice or a certified one. Enrolment is usually 2 years at most. The school normally applies for the Certificate of Eligibility on your beha⁠l⁠f⁠.

Up to 28 hours a week (permission needed)

With permission for activity outside your status of residence, you may work up to 28 hours a week (up to 8 hours a day during long school holidays). Adult-⁠entertainment businesses are excluded. Covering all tuition and living costs with part-⁠time work is not allow⁠e⁠d⁠.

Young people from 32 partner countries and regions

Japan’s Ministry of Foreign Affairs describes the scheme as letting young people from partner countries and regions enter for a holiday and do incidental work to supplement their travel and living funds. The age range is 18 to 30 (18 to 25 for Australia, Canada, Korea and Ireland, up to 30 if their governments approve). Whether you can use it depends on your nationality; check the table bel⁠o⁠w⁠.

Incidental work is allowed

During a stay for a holiday, you may do incidental work to supplement your travel and living fun⁠d⁠s⁠.

Mostly up to 90 days (depends on nationality)

The Ministry of Foreign Affairs’ list of visa exemptions for short stays names 74 countries and regions. The period is 15 days for Indonesia and Thailand, 30 days for Brunei and Qatar, and 90 days for the rest. It depends on your nationality, so check the table bel⁠o⁠w⁠.