Brotherhood of the Wolf
While developing the series, Watsuki was influenced by his previous works, mostly by "Rurouni Kenshin" from which he drew references to the main characters; Kazuki and Tokiko were conceptualized after Makimachi Misao and Himura Kenshin, respectively. Films such as "The League of Extraordinary Gentlemen" and "Brotherhood of the Wolf" also served as source of inspiration, as well as American comics. Reviewers called the characters generic and also criticized their designs. The main characters divided critics' opinion; Kazuki and Papillon have received both praise and criticism, while most of praise was towards Tokiko, who also was voted as the most popular character of the series by readers.