<a href="http://fukunaga.deviantart.com/art/Revengeful-ghost-of-Heike-541153869" target="_blank" rel="noopener">Source</a>
Now it is peaceful Japan.
A few hundred years ago, it was days of war.
Every time of war, the loser is feared as a spirit, was enshrined.
This series and 100 pieces, my rough sketch etc.
I published an e-book published on Amazon with more than 250 paintings in total.
If you are interested, search “kaijin fukufuku”.