[When the video starts there's fabric mountains where Ritsuka has placed the blanket he had wrapped around for warmth. There are what looks like
cooler units all along the wall and two are open. One is empty except for Ritsuka sitting on it with his hospital gown fashined into a strange looking yukata. The other has a dead body laying on it. The boy is drinking from a bag of blood. Clearly he found the blood bank.
The shota looks down at the body, then sucks on the blood, then looks body again.]
This is kind of disturbing ... but at least it's quiet.