Foreign exchange and the Japanese economy (middle) "Currency depreciation = stock price"

Analyzing the relationship between exchange rates and stock prices in 20 countries/regions (G20), there are few “currency depreciation = stock prices” that are natural in Japan. Investors are fond of the yen's depreciation and the company's yen-converted profits increase, but on the other hand, the “real effective rate” (comprehensive words from the two sides ) in terms of prices and trade with each country declines and purchasing power declines. Companies will find it difficult to invest overseas. Sustained growth cannot be expected due to the weak yen.