Zoo

Zoo summary:

A collection of short stories by Otsuichi which resembles a Zoo with its many short stories covering different topics, settings, and genre.
Identical twins brought up in the same household where one is treated like dirt and the other a princess.
The last man on the planet builds a robot to bury him as he muses about his own impending doom.
A family tries to find their father’s spare blood as he bleeds to death after having been stabbed by a kitchen knife.
And many others.