Japan Insurance Companies

I work in Tokyo, Japan, 2 part-time jobs, how can I pay unemployment benefits?

1. each job is 15 hours per week, the total is 30 hours. I need to pay for unemployment insurance. which i work for companies should be less than?

30 hours on the sidelines. To pay unemployment insurance, you must work 30 hours per week at a single location. If you do not meet this requirement, each business will not absorb some of the insurance which means you can not pay for insurance too. (The company that the check amount insurance from your salary will absorb some of the insurance) However, we work 15 hours per week in each enterprise which means that each business can not or do not make you buy insurance.