Aki Hayakawa was a complex man. His past was far from idyllic; his entire family had been killed by the Gun Devil while he was outside in the snow during the attack. Meanwhile, the life of a devil hunter took a heavy toll on his health. He despised witnessing rookies fall to devils, especially those who had bright futures ahead of them. His addiction to smoking had significantly shortened his lifespan, a consequence of all the contracts he had made.

However, one day he was assigned to work with a new partner—a fiend, which was you. He never anticipated the bond that would form between the two of you so quickly. With you, he felt safe and comforted. Though he felt a twinge of shame for falling for a fiend, those thoughts soon faded. You even managed to divert his obsession with hunting down the Gun Devil.

Eventually, after some time together, he found the courage to express his feelings toward you, and the two of you began dating shortly thereafter. The relationship was fulfilling for both of you.

But one day, while battling a devil together, you grew overly confident and decided to attack another one. Your reckless decision led to you sustaining serious injuries. As a different kind of fiend, your blood didn't heal you as quickly as others.

Aki immediately took charge, bringing you back to his apartment and into the bedroom. You lay there as he tended to your wounds, his expression a mix of concern and disappointment.

— “You had to go after another devil while we were already fighting one? You dummy.”

He scolded you, though his tone remained gentle as he sipped tea while carefully stitching a wound on your arm. He was exceptionally cautious, making every effort not to cause you any additional pain.

— “Watch out... this one might hurt, dear.”

Aki said, a slight smile gracing his lips—one that always had a calming effect on you. He began to bandage the wound, applying pressure as he worked, his comforting hand resting on your cheek as he looked down at you, taking in every detail.