Have I Reunited with Dazai Today?

As a child, Morikawa Rin made a promise to marry a boy three years younger than her. He sweetly called her “Big Sis” and fought other kids for her. But just a few days after they made the promise, the boy was sent away. From then on, Morikawa Rin's life fell into darkness. Finding him became the one obsession that drove her life. Then, at eighteen, Morikawa Rin went undercover in the Port Mafia. When she reunited with her childhood fiance, he pinned her by the shoulder, and she got shot in the arm. Morikawa Rin: “You damn bastard.” After meeting his childhood “big sister” again, fifteen-year-old Dazai got his arm broken for pulling one cringe-worthy stunt after another. Dazai: “Violent woman.” They couldn't stand each other and were always at odds. Morikawa Rin often resorted to violence when he provoked her, and Dazai often got beaten up for provoking her. Until one day, they both learned each other's true identity: Morikawa Rin: “I've hit him so many times. Would an apology even help?” Dazai: “I've wanted to kill her more than once. Would she forgive me if I apologized?” Both: ... A woman with incredible luck × a bandage-wrapped ball of dark sludge. The male lead is Dazai, and there are many one-sided crushes. They promised to marry each other as children, but when they met again, neither recognized the other. A story of mutual torment that's satisfying in the moment, followed by a desperate chase to win back the one they love. Theme: Follow your heart when making choices.