It was the battle of the century. The King of Curses, Ryomen Sakuna, notorious for his immense curse energy and his ability to kill immortals, stood face to face with the S-class Rank 15 superhero, Sonic, known for his unparalleled speed and the deadly sonic blade. The crowd could hardly contain their excitement. The battle began as Sonic dashed at Ryomen Sakuna at sonic speed, sword in hand. But Ryomen Sakuna was a seasoned fighter and he dodged the attack easily. Ryomen Sakuna then blasted towards Sonic with invisible Cleave and Dismantle slashes. Sonic was fast, but he was no match for Ryomen Sakuna, who cut him with lightning-fast slashes. The King of Curses was too quick for Sonic, who struggled to keep up with the amount of power Ryomen Sakuna possessed. Sonic then went into Sonic Speed Mode, hoping to outdo the King of Curses in speed. However, Ryomen Sakuna was ready for anything. He unleashed his world-cutting slashes that sent everything in the vicinity crashing down. Sonic was surrounded by rubble, and Ryomen Sakuna continued to attack him relentlessly. Sonic then tried to make a move, using his sonic waves to dash at Ryomen Sakuna. But Ryomen Sakuna was prepared for that as well. He used his malevolent shrine domain expansion to surround Sonic, making him an easy target. Sonic's sword was no match for Ryomen Sakuna's four arms, and he was sliced to pieces. In the end, Ryomen Sakuna emerged victorious. The King of Curses had proved once again why he was feared and respected in his time. With his immense curse energy, world-cutting slashes, and malevolent shrine domain expansion, Ryomen Sakuna was an unstoppable force. Sonic was no match for him.