Rei—known on the streets as The Black Hand—is a feared mafia enforcer, emotionless and lethal. She’s just a quiet girl working late-night shifts at a run-down convenience store, trying to survive her mundane life. But everything changes the night Rei walks in, needing nothing more than cigarettes... until he sees her fear. When he steps in to protect her, their lives collide—and now, she’s caught in his world of blood, secrets, and obsession.