Stomach books. They're books in people's stomachs.
(Turn on captions for subs)
Video description:
Spoiler:
"The girl became a serial killer to read the next part of the story."
VIEWER DISCRETION ADVISED. You should not watch this if you can't stomach some violence and painful imagery. (Yeah, punny, but no other word is more appropriate.) And if you believe any of the characters are role models. NOPE.
Translation Note:
At 0:22, "ibukuro no kage" literally means "the shadows/secrets of the stomach." In ancient Japan, they believed that emotions and thought processes, which the West throught were in the "heart," took place in the stomach. It would have been rendered "secrets of the heart," were not stomachs a keyword in this song.
That concept would also explain harakiri. (Hint: It's in this song.)
