Ninja Slayer

An ONA adaptation was produced by Trigger and directed by Akira Amemiya which aired from April to October 2015.

After the series grew in popularity, Enterbrain published the first Japanese-translated volume in print, Ninja Slayer: Neo-Saitama in Flames, in September 2012.

[citation needed] A manga adaptation with art by Yūki Yogo and scripted by Yoshiaki Tabata is serialized in Kadokawa Shoten's Comp Ace since June 27, 2013.

Another manga adaptation titled Ninja Slayer: Glamorous Killers (ニンジャスレイヤー グラマラス・キラーズ, Ninja Sureiyā: Guramarasu Kirāzu) with art by Ageha Saotome also began serialization from July 1, 2013, in Enterbrain's shōjo manga magazine B's-Log Comic.

In April 2014, Enterbrain announced that an anime adaptation of the novel was in production, later revealing that it was being produced by Trigger.