As some of you may know, Sui Ishida posts quite a lot of his own original artworks on his Twitter account sotonami or his Tumblr page sui-zakki. To some of these, as well as inside the manga's volumes, he sometimes associates a poem written by himself relating to the characters depicted.
"After looking at some spoilers I saw this on ishidas tumblr and thought it was interesting
Translation of Ishida Sui’s Tumblr post - 16 Nov 2015
From here. BGM here.
“The Sky Falls”
I had a dream where the sky fell down.
The bloodstains won’t come out, no matter how many times I...