It follows the story of Lemy Abelard (Len) also known as Fifth Pierrot, an assassin of Père Noël. He was told by his mother, Julia (MEIKO), that the world is infected with evil and it's his job to purge it. Taking this duty onto himself, he murders people thought out the city Rolled. Later, Elluka Clockworker (Luka) offers him to flee the country with her and he tells Julia about her treachery, forcing Elluka to flee. Later, when attempting to kill a police officer, he's shot by Gumillia (GUMI). As he bleeds to death, Elluka mocks him for refusing her offer.