Bro, Why Haven’t You Betrayed Me Yet?

The script assigned to the transmigrator: A ruthless schemer who spent half his life building his power. He fails at the final hurdle, loses his composure, and makes a desperate last stand. Then his own brother stabs him in the back in the name of justice, leaving him to die on a red carpet, unable to rest in peace. What a textbook villain's script. The transmigrator thought it wouldn't be too hard, but the unreliable System stabbed him in the back first. How could the transmigration headquarters' System break down during transmigration? That's as absurd as absurdity's mom opening the door for absurdity: absurd beyond belief. All the visual records have been destroyed, leaving only a few scraps of text. The transmigrator discovers that the key challenge lies in the final scene, because he needs a co-star: his younger brother. Who is the important character destined to put a full stop to my life? Is it the one with dark skin? The one with blue eyes? The one with long hair? As looked at himself in the mirror, darkness gathering in his eyes. As long as that moment comes... "So why haven't you come to kill me yet?" [Before you read] 1. The protagonist is from Saint Seiya: The Lost Canvas. It's fine if you haven't read it (I know Saint Seiya is old news now...) 2. A single-world, slow transmigration: Detective Conan → Bungou Stray Dogs → Jujutsu Kaisen → Saint Seiya (the order might change) 3. A twisted brotherly bond 4. Comments welcome Theme: Love the person in front of you