I ran into an old friend.
Kyūyū ni dekuwashita.
crony; old friend
at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although
to happen to meet; to come across