A tribute anthology for Mushishi.

From MangaHelpers:
One day, Son happened across a woman, named Shue, that he had loved as an older sister when they were young. It looked like it was the same woman, with the same scars, but Son had thought she was dead. In fact, she was a reanimated corpse, resurrected by a young girl named Fuu to work as her minion. Son becomes Fuu's follower, determined to find a way to return Shue's soul to her body so that she might live again. However, Son doesn't know what he's gotten into with Fuu, though, as she ends up in conflict with many other practitioners of her arts, using Shue's reanimated corpse to do things that Son would rather have never seen.

Series of stories about Parasyte, from various notable mangaka.

This is a fantastic story about two sisters. Shizuru is a junior high school student who can see monsters, whereas normal people can't. Her little sister, Mizuki, is easily haunted by these monsters. They are living in their grandfather's home apart from their parents because of their abilities. Each episode is not horror or too serious, it is rather a heartwarming story.