Takahiro was planning on making Akame ga Kill into an adult Visual Novel at first before he decided to turn it into a manga instead.
Akame ga Kill! is the anime adaptation of Takahiro's shounen manga of the same title, which is illustrated by Tetsuya Tashiro and was serialized in Square Enix's Gangan Joker from April 2010 to December 2016. The anime follows the source material through the first eight volumes of the manga, incorporating events from later issues as well, before concluding with an original story arc that deviates from the manga.
Based on is a Japanese manga series written by Takahiro and illustrated by Tetsuya Tashiro. It was serialized in Square Enix's Monthly Gangan Joker from March 2010 to December 2016, with its chapters collected in 15 tankobon volumes.