EUR/JPY is the amount of JPY exchanged for one EUR. The euro is shared across the euro area. European Central Bank policy and the region's inflation, growth and cross-border trade shape demand.
Comparing charts on this board
Pair EUR/JPY with EUR/USD and USD/JPY: approximately, EUR/JPY equals their product. Euro strength and yen weakness reinforce; opposing legs offset. This is a useful cross-rate decomposition.
GBP/JPY and AUD/JPY show whether the yen-side move is shared or euro-specific. Shared cross-yen weakness directs attention to yen news; an isolated euro move directs attention to Europe.
Related charts: EUR / USD · USD / JPY · GBP / JPY · AUD / JPY
Official references: RBA: exchange-rate conventions