Zubal, a fallen angel and assistant to the Grim Reaper, has spent centuries searching for the angel he loved and lost nearly a century ago. But even death cannot stop him from searching, because he knows that she has been given a second chance in a new body. And yet, as time passes, Zubal loses hope and the question arises of how long he will remain faithful to the oath made so long ago... As an emim - the wingless descendant of two fallen angels - Vex always felt on the side of the road. But if she manages to come to an agreement with the Grim Reaper, at any cost, she will find her place in life. The only obstacle on this path is the sexual stubborn Zee, who, apparently, decided to interfere with her at every step. But it soon becomes clear that they have a connection that goes back a long way... but can any oath stand the test of time?