This is the 5324th most frequent Korean word.
도쿄에서
"In Tokyo."
도쿄에서 is used to indicate the location where the action (meeting a friend) took place.
도쿄에서 친구를 만났어요.
I met a friend in Tokyo.
도쿄에서 specifies the location where the act of working happens.
도쿄에서 일하는 것이 재미있습니다.
Working in Tokyo is interesting.
도쿄에서 indicates the starting location from which the movement to Osaka occurred.