Annona

"What is your sin?" His eyes burn with a desire that seems to have no end, their brimstone color glowing.
"I don't know what you're talking about, any amount of sin I could've done I've already atoned for by my suffering."
"Oh my dear; real, genuine sins, no amount of atonement can wash those away."

Trap between the past she doesn't remember, and the present that is now being threatened by a force called the Twelve Commandments, she will have to band together with the other Seven Sins to save the world they know.