Synopsis: Grim Reaper

A high school student named Yuuka Shinchiro, whose parents died in an accident years ago, is walking through a park at night when an alien bites him and a child's head suddenly appears in his hands. Initially thinking it was just part of a dream, he wakes up with a bite mark in the same place as in his "dream". The following morning, he learns that a child's head was indeed found in the park with lots of blood. As he investigates, a man inquiring about the "abyss" confronts him and later calls him the Grim Reaper at his house.