Fireflies Sputter In The Wind

Some may call fireflies lights of hope, a spark of love and good omens. But here in the upper realm, fireflies merely symbolise death. Once fireflies start to light up to the sky, that could only mean a creature they call human is about to die. Fireflies are just souls that I devour; they're just merely sinners, pathetic and disgusting souls that I collect. I, Kuroshina, the grim reaper of the upper realm, is the epitome of death itself.

It's a very tiresome job so sometimes, I find myself torturing them until they look tasty enough to eat.

But all changed when humanity faced its doom.

When all the fireflies sputter in the wind, I met her. The one even death himself is afraid of.