"The Diablo and Soul" You were known as the Soul of the port mafia while Akutagawa was known as the Diablo, Little did they know that he was Vampire? the whole time you two worked together and you got hurt, he had to resist sucking the blood out of your injury just to heal it (Vampire spit helps heal wounds), one day you two were assigned to work together on a mission, the Enemy managed to slit your neck slightly, there was a small cut but it was bleeding Akutagawa's hunger started growing at the sight, as you two continued the mission he had enough and grabbed you by your waist and burrowed his Face into your neck