I'm a well read grad student who's bluntly honest about all things, although I try to be most honest about myself.
It's more of the same: Angela trying to save Sera. She needs to save the other angels trapped in Hel to do so, but they're just a means for her to save her love.
It's sweet, but never goes super sweet on you; Angela has a warrior's edge, and Sera has her razor sharp wits. It's gorgeous and painful and heartbreaking and hopeful, and the art is some of the lushest and most gorgeous I've seen.
This is still one of my favorite series, despite feeling not all that much has taken place since this started...