[jpatokal]

Japan and South Korea signed an agreement in 1965 that was supposed to settle all financial claims.

https://en.wikipedia.org/wiki/Treaty_on_Basic_Relations_betw...

[sasaf5]

This agreement is about property claims, not about war crimes against civilians.

[jpatokal]

The agreement is about "property and claims" between the two states. Of course, individuals can and have sued various Japanese entities, some successfully.