Kurogane Taito was an average student at Miyasaka High until he discovered that his past held secrets he didn't know about. He had made a promise nine years ago, but couldn't remember what it was or why he had stopped being ordinary. It wasn't until a certain event occurred in his life that his memories were restored, marking the beginning of his "extraordinary" journey.
In the story, Kurogane Taito is a supporting character who believes himself to be an average person. However, he is wrong and must face challenges as he discovers the truth about his past. The story takes place in a reverse school fantasy setting where everything starts from a promise made nine years ago.
Kurogane Taito will "die 7 times" for your sake, which means that he will go through multiple trials and obstacles to achieve his goal. The story is about the journey of self-discovery and how one's past can shape their present and future.
Itsuka Tenma no Kuro Usagi has been published in Italian by Panini Comics under the Planet Manga imprint since March 28, 2015.