Yagami Yue, who was entering his third year of high school, accidentally picked up a notebook that fell from the world of death. After picking up the notebook, Yagami Yue used the notebook to start the reform of human society - the punishment of justice for prisoners. On the other hand, Detective L, who has the smartest mind in the world, begins to pursue Yagami Yue in order to prevent him from committing crimes. In the process of constant testing by both parties secretly, the two gradually developed a tit-for-tat friendship. In a contest between both sides in the name of justice, who will win in the end?
Intention: Justice may be late but will never be absent