Overtime after overtime, Kanda, a company slave without a decent life, one day comes across a murder scene on his way home. The murderer covered in blood... was his former classmate Lizzie! "It's like a dream," says Lizzie, who's happy to be reunited. Kanda barely remembers him, but since Lizzie doesn't have a place to stay, he can't refuse him and decides to let him stay at his house. What will happen when Kanda’s daily life is gradually invaded by this suddenly appearing killer? Note: Includes one extra chapter.