"Be yourself, stay safe" (literally "Be you, be safe")
The phrase "きみでいて ぶじでいて" can be translated into English as "Stay as you are, and stay safe" or more naturally as "Be yourself, and stay safe." The core meaning revolves around being true to oneself and remaining safe or unharmed.
Japanese ACG music master Yoko Kanno composed a prayer song for the Great East Japan Earthquake, "きみでいて ぶじでいて" (Stay Alive, Stay Safe), and performed it herself.