He is not her air, because she lives in an environment without him. But he has always been her sky, embracing her dream of flying freely. Even if they are enemies, even if they cannot smile at each other, even if they meet with each other in battle, he will always be her sky.
"Only by being ruthless can you know the truth." If strength is the innate proof of survival for everyone, then she has no reason to exist, but she has become the reason for others to survive. In a world where ruthlessness creates strength, only those people understand that the true source of strength is love.