The man who cleans thinks that you can get a lot of secrets from waste. Why people tend to lie; garbage, on the other hand, never lies. The man who cleans believed he was invisible until he met the girl with the purple tuft. The Girl with the Purple Crest bursts into her tidy life because only an evil angel can save her now. Meanwhile, the Slayer knows that there is someone out there killing blond-haired women. Even if no one believes her, she knows it. What she doesn't know, however, is that there is something evil hiding behind the green door. The truth lies at the bottom of a dark and very deep abyss.