Demons don't Breathe

Upon being cursed by Hela, Skad feels fear for the first time: They feels their lungs breathe.

 Realizing the value of life, their selfishness will make them do everything to keep breathing, and they won't stop raising their sword for a second, after all, 

 Demons don't breathe.

In this game, Skad is dying, their life is always dropping and the only way to keep breathing is by taking souls.

 For how long can you keep Skad breathing?

 You can't delay the inevitable.