Hourly wage part time salaries?

Hello Andrew, Living in Tokyo is absolutely more expensive than Hokkaido, but you probably can find a part time job easily. Those crowed cities always need workers especially restaurants, conbinies, supermaket. The most useful page to find a part-time job is Townwork https://townwork.net/, you can take a look if this helps.

The hourly wage in Tokyo is about 1000 yen to 1100 per hour in shoes shops or restaurants; etc. Also if you work at nightshift, the wage will be usually increased by 20-25%

Hope this helps:)) Have a wonderful day:)