The manga takes place in wizard city, where the source of the evil in the city is an existence called "Boogieman." The story starts when a female fairy named Fran meets a ninja boy named Koyukimaru, who is chasing the Boogieman.
Kodama launched the vampire comedy manga Blood Lad in Kadokawa's Young Ace magazine in 2009, and ended it in September 2016. The manga's 17th and final compiled volume shipped in Japan in December 2016. Yen Press publishes the manga and the spinoff manga Bloody Brat in North America. The manga inspired a 10-episode television anime adaptation, which premiered in 2013. Viz Media streamed the series on Hulu as it aired in Japan, and released it on DVD and Blu-ray Disc in September 2014.
Kodama and Yukinori Kitajima launched the manga Hamatora in Shueisha's Weekly Young Jump in November 2013, and ended it in December 2014. Shueisha shipped the third and final compiled volume of the manga in February 2015. The manga was part of a multimedia project that also featured two anime series, two stage plays, and a Nintendo 3DS game by FuRyu. Crunchyroll streamed both anime series as they aired in Japan. Sentai Filmworks released both anime seasons on Blu-ray Disc and DVD in 2015 and 2016.