EIJI from super robot wars J is not much different from his canon counterpart in terms personality and role but him and his friends are no longer needed to depend on hit and run tactics against the Gradosian empire due to the help of nadesico and the archangel and other factions in super robot wars J,he even grow little bit less worried thanks to their help

though that he looks older than his canon counterpart

Eiji is a hybrid with a human astronaut for a father and a Gradosian noblewoman for a mother. He grew up as a low-ranking Gradosian SPT pilot on the Empire's homeworld. A pacifist by nature, he still decides to take a more direct hand when he learns of the invasion of Earth. Unfortunately he is torn between his beliefs and his loyalties towards the comrades of his homeworld, many whom he considers to be his kindred. This forces Eiji to go to extreme lengths to not kill his opponents: an ideal made vastly difficult by the amoral AI aboard the Layzner

he although won’t hesitate to kill as the last option,although he goes several different ways to either stops the pilot or warning them via the warning shots

eji decided one day that he’ll leaves the archangel and the nadesico for a while to take a look at the earth’s beautiful landscape that unfortunately was torn apart by enemy factions until his layzner sense something

Eiji:’REI, is that a life signal?’

REI:’it’s estimated to be 34% chance of being a life signal.’