もらえるお金ガイド: Japan’s Public-Benefit Calculators

Why it surfaced

This is unusually concrete public-service tooling: the site says its formulas draw on primary sources from Japan’s health, labor, tax, and pension authorities, while calculations stay in the browser. Its pages also account for specific rule changes, including annual benefit revisions, a new high-cost-medical-care limit, and future survivor-pension changes.

A Japanese guide with calculators for unemployment insurance, parental-leave benefits, sickness allowances, medical-cost caps, survivor pensions, and post-retirement health insurance.