Leilade lives a pretty simple life. As a commander inside the demon army and one of their greatest mages, she only has to deal with logistic problems and not really need to fight at all. But when the race opposing them manages to assemble something they shouldn't have, the life of Leilade is ruined.
By a miracle, she and some demons survived, only to find out that they are not on the same planet anymore. Weak, inside a world not viable for their survival, they will have to choose their next actions carefully.
Will they destroy this world, or capture it, by force or by wits? Because everything is not as peaceful as it seems.