Even before Trump's tariff war hit in full Japan's economy shrunk:

While everyone around the globe was cranking up exports ahead of the tariffs and jamming the pipelines to the us ... Japan exports were -0.6% q/q.

As I post USD/JPY is showing just a touch lower, but not yet to a new session low:

usdyen Japan gdp contraction q1 2025 16 May 2025 2
Source: Forex Live