it’s fan art. All these characters are from different horror stories from Japan. An artist drew them all together along with a scared boy.
Google cross search says Suterareta Yuusha no Eiyuutan -Novel
Nope it’s a fan art can confirm. Suterareta Yuusha no Eiyuutan is not related as far as I know, maybe google reverse search got it wrong?
yeah maybe 
even google can get it wrong 