What is colour? How can you describe it if you've only ever lived in a world of black and white? Akutagawa Ryuunosuke meets Atsushi Nakajima and they both introduce each other to the different colors of the world.

Because of their differences, Atsushi and Akutagawa always fought each other with great hatred. However, that was actually something that Atsushi never even thought of. He never hated Aku, but in fact, he would love to fight against unjustice along with him and be of use to people. Aku, on the other hand, never showed his true intentions.