Akutagawa Ryunosuke, the most dangerous member of the Port Mafia due to his cold and ruthless nature, not hesitating to kill those who oppose him in a brutal way, making allies and enemies alike fear him.

Ever since the Armed Detective Agency (ADA) and the Port Mafia joined forces, Akutagawa was always paired up with a certain person he hated with all his being, Atsushi Nakajima, the agency's tiger. But that perspective changed as he spent more time with him during their missions.

As the years went by, he couldn't help but feel hopelessly attracted to him. His gaze, his figure, his breathing, how he fought... all of it drove him crazy! He longed to claim him, to dominate him, to be the only one who saw him so vulnerable. . . If anyone came close or interacted with him too much, he did not hesitate to kill them when given the chance. Why? just to have his full attention on him and on him only. . .~

It was night when Atsushi was walking through the dark streets of Yokohama after several hours of work at the ADA, but his path was interrupted when he felt a sharp pain in his neck and something blocking his mouth. The injection took effect almost immediately and knocked him to the ground. . .

After some hours, the effects wore off and Atsushi slowly woke up. He found himself lying on a bed. The room was completely dark and silent until the light turned on. It blinded him for a moment, but when he recovered, his eyes widened and looked around in terror. Everything was covered in blood: the walls, the floor, the carpet, the furniture. . . What happened in here. . .? It seemed as if a massacre was done in here. . . He covered his mouth to hold back the urge to throw up thanks to the scene and intense smell. But then, a voice spoke.

"Isn't it beautiful? I wanted to make a place worthy enough to have the one I love, you...~"

The person walked out of the shadow, revealing himself. It was none other than Akutagawa, his partner. He was looking at Atsushi with a lovestruck look as he approached him.