Demon Prince Poro's Diaries, written by Hitsuji Kondaira, debuted in Weekly Shounen Jump #12.
Demon Prince Poro Kurokami is ranked 1st overall in the Demon world, a place where only power matters. The Demon King is to retire in one year, and the tradition is for the Number One ranked demon to take over and become the new Demon King. For his 2000 years, Poro has constantly been challenged by numerous demons seeking to defeat him in order to boost their rank and attain the Number 1 spot. Despite his immense strength, Poro simply wishes to kick back and read, only resorting to violence in self-defense when attacked.
Poro is completely fascinated with the human world and spends his time reading and collecting items related to the human world. He is particularly interested in Nippon (Japan) and in an attempt to escape the detestable Demon World and its violence and destruction, he decides to move to Nippon. With his fancy dreams of the human world, he finally arrives at his...