This is one of the few soundtracks I made after the animation. I have a special scene in mind where two characters hunt down the laughing demon Warai.
Made with FL Studio 12
Vocals by Nappi

Lyrics:

First part translated:

You aim at my chest,
with eternal rage and murder you make,
the final shot. The lost blood,
freezes and silents us.
But with this ice inside the heart,
death is avoided but the pain stays,
and your laughter brightens your day,
until your first tear drops.

2. part

The dark of glowering nights,
falls deep, down to our sight.
Coated in cold and black mist,
fades in, the grin of the abyss.