directly; in person; firsthand — to do something face-to-face or by direct contact/observation
問題があるなら、担当の田中さんにじかに相談してみてください。
If there's a problem, try consulting Mr. Tanaka (the person in charge) directly.
その話はじかに聞いたので、間違いない。
I heard that story firsthand, so it's certainly true.
現場にじかに行って状況を確認した方が早い。
It's faster to go to the site directly and check the situation yourself.