Inuyashiki is a Japanese science fiction manga series written and illustrated by Hiroya Oku. The Inuyashiki manga series has been adapted into an anime television series as well as a live-action film that was released in 2018. The story of Inuyashiki revolves around Inuyashiki Ichiro, an older lonely man stuck with an uncaring family. One evening while walking through the park he is struck by a bizarre explosion and his body is replaced by a mechanical body that still appears completely human. He soon gets the chance to try out his new and powerful body when he saves a local homeless man, after that fateful event, Inuyashiki Ichiro decides to dedicate his life to doing good deeds. After some time he realizes that he was not the only one affected by a bizarre explosion.