Quote from kristycyw
The sky is a place of inspiration, the field or the world of Yvienne and krohiten, its where she fights and where they fall in love, their heaven. I think that's why its called ciel. And french is a language of romance is it not? I think its sweet, after all we see so many sad stories and forbidden/lost loves in this sweet manhwa.
However I think one part of this manga is expressed wrongly. Yvienne does not 'have no will to live' rather she simply wants for nothing. But we are slowly seeing that change, she has found people, friends that are precious to her. If she can live for someone elses dreams then she has already found her will to live. Love may be an ideology to her but love isn't simple in the first place, it takes time.
It's also her magic and Krohiten is a Sky dragon.
Nulla in mundo pax sincera
"Always go too far, because that's where you'll find the truth." - Albert Camus