Two years has passed since the hero fought his dark side. During the two years, the dark side never appeared to cause trouble. Aside from Eggman's attacks, everything on Mobius was peaceful. Until that day.

~Inside of a kitsune's house~

The hero of Mobius, Sonic was hanging out at fox friend, Tails one afternoon. Since Eggman wasn't planning anything that day, so the duo hang out for a bit. When the sun was going down, the hero decided it was time to go home.

"Alright, see ya later!" Sonic said as he walks to the front door.

"Oh ya, I forgot to mention that Silver is coming over to visit!" Tails said with a smile.

"Silver? Isn't he that hedgehog that was with Blaze?" Everyone(Except for Blaze) haven't seen the silver hedgehog ever since Sonic's last birthday.

"Yep! He wants to hang out with us for a bit." The two-tailed fox said.

"I'm fine with that. As long as Silver doesn't tell me time stuff like last time we met." The blue hedgehog said. His gloved hand was on the doorknob until Tails dropped the ball

"Are you sure you'll be alright? Do you know what's today?" Sonic froze with his grip on the knob became tighter. Yes, today was the day that his dark side controlled him. Before that happened, nightmares plagued Sonic for two weeks. He doesn't have those nightmares anymore but still has memories of being controlled. He remembered being so weak that he couldn't open his eyes, feeling like he was floating, and feeling pain all over his body when Shadow was fighting him. But when he heard Amy's voice, he fought his way out with all of his strength. The last time that the hero ever saw his dark side was when an explosion of chemicals hit them in Eggman's old lair. Sonic pushed those aside and turned to his friend with a grin.

"There's nothing to worry! That guy has been dead for two years. I'll be fine!" He saw the concern look in Tails' eyes. The hero sigh then fully turned to his friend.

"I know that I didn't kill him myself back then. But he's been gone for two years, and I'm still here. If he did come back, then we'll win the fight like last time!" The blue blur said with his smirk.

"I know but I just worry about you. You could have died if Lily wasn't there." Lily was a training nurse at the time when Sonic fought his dark side. But after the hero defeated his dark side, the place where they fought was on fire. And a pillar crushed the hedgehog. His heart stopped beating for a few minutes. But with Lily and Amy's help, he's alive. After that, the training nurse rarely hangs with them since she has to study.

"I remember, but I didn't die. I've survived stuff that a regular Mobian couldn't, and I'm fine afterward. You don't have to worry about anything." Sonic said with his hand on his chest. Tails looked at the hedgehog with worry. But then sighs

"You're strong physically and mentally. But back then, it was terrifying. Seeing you get control by a being and tried to kill all of us."

"I'm aware of...that. But that was in the past, and my dark self will never come back." The hero assured the kitsune. After a few moments of silence.

"Alright, but go straight to your house." Tails said.

"Are you my mom right now?" Sonic commented before running out of the house. The yellow fox shook his head with a cracked smile.

"Still the same Sonic as always."

The hedgehog whistled a tune as he runs through the area. When he eyes spotted Green Hill Zone ahead, a smile appeared on his face.

"I should go there sometime." But when he passed the zone, he stopped when an uneasy feeling hit his chest and stomach. Inside his chest, his heart beating fast and his stomach felt twisted in fear.

"W-Why does this feeling feels...Familiar?" His wide emerald eyes looked at the zone.

"Alright, but go straight to your house." Tails' words echoed through the hedgehog's head. But the feeling couldn't shake off. Something was in the zone, and he needs to find out.

"I'll do a quick check." Then the hero runs to the green area. Before he could get to the loop, the blue hedgehog smelled something rotten.

"Gah! What is that?" His green eyes spotted a dead squirrel Flicky near a bush. Sonic was taken back because there weren't predators around this area. And when he took a better look at it, it looked like it was bitten down to the spine area. The predator only ripped through the spine which means that the animal was in two. Seeing this made the hero gag and look away. Then his ears went up when he heard bushes rustles near the dead animal. Sonic moved back, ready to fight. But when the animal came out

"What the?" It was a purple chao with pupilless blue eyes and no wings. The chao looked up at the hedgehog with a confused look.

"Chao?"

"Oh hello, little guy. Did you kill this Flicky? But then again, all chao aren't carnivores. So what did this." Sonic asked himself with his hand under his chin thinking. Then he saw the chao looking behind the hedgehog with fear.

"C-C-Chao!" Sonic didn't have time when a dark orb slammed his back and made him fall on his face.

"What?" The hero murmured as his back burns.

"I thought you were more aware of your surrounds? You disappointed me." Sonic gasped when he heard the familiar voice. His dark self, but his voice was deeper than he remembered.

"N-No, you can't be here! You're d-d-dead!" The hero shouted without looking at his enemy.

"Dead? You knew that I'm still alive after all this time." The hedgehog heard footsteps coming to his side. From the corner of his eye, Sonic saw his dark side crouched down beside him. The hero noticed that the other hedgehog doesn't have black fur but blue instead. Sonic breathed in to calm himself

"I knew you were still alive. But why? Why did you wait for two years to come back?" Sonic asked his shaky eyes looking away.

"Hmm...Good question. I was waiting for the right time to strike." The hero knows that his dark twin was smiling without looking at him. The blue one saw the chao hiding in the bushes, watching the scene.

"D-Did you kill that squirrel?" After a few moments of silence.

"That animal was there before I came here. But it was fun to rip the spine like a toy." His dark twin said with an odd chuckle. It was like a hyena's laugh but deeper. Sonic almost shook when the laugh hit his ears.

"What's your plan, Dark?" The hero asked still not looking his twin.

"Dark? I got a real name, you know."

"Oh ya? What is it then?" The blue hedgehog asked.

"You can call me Exe," Exe said with his odd chuckle.

"Exe? That's an odd name, don't you think?" Sonic commented.

"At least it's not cliche as Dark." The dark twin said with a shrug.

"Look, you think you can control me like last time then you're wrong. I'm stronger than I was two years ago. You'll have a hard time controlling me again." The hero said with confidence.

"Is that so? So much confidence to say that to an enemy," A gloved hand reached and grabbed Sonic's lower jaw and the fingers squeezed the hero's cheeks, "Without looking at them." Exe then forced Sonic to turn his head around. Once the blue hedgehog saw his twin's eyes, he froze. Pitch black were on the sclera while the pupils and irises are crimson red. Sonic wanted to shout, but he felt like he lost his voice.

"Like the new look? Then again, you picked this look." Exe commented. The hero finally got his voice back and asked

"What are you talking about?" That made chuckle then a full laughter that showed his razor sharp teeth.

"Did you forget or just an idiot? That explosion hit my eyes and made me blinded for a short time. I escaped the fire using my other senses and ended up at a stream. But when my sight came back, my eyes were deformed. I tried to change my appearance, but I can't transform when I have wounds. I'm stuck like this because of you!" Exe shouted with pure hatred.

"But I didn't cause that explosion!" Sonic shouted back at his dark side. The dark twin's eyes suddenly softened and a crooked smile appeared.

"It doesn't matter if it was your fault or not," As Exe says this, the hero felt his throat tightens. He then realized that his dark twin was choking him with one hand. Sonic tried to fight back but doesn't work as his throats tightens more.

"Chao!" The chao from earlier jumped on Exe's back.

"Get off, you pest!" The dark hedgehog shook the small creature off. The odd chao tried to get up but a dark orb landed on his stomach. It sent it the bushes then it was knocked out. As this was happening, Sonic's ears were down, his muzzle was turning blue, and trying to breathe. His dark twin saw this

"Oh, sorry. Don't die on me now cause I need you alive." Exe said with a grin. With that, the blue hero falls unconscious.

I hope you like this sequel so far. The reason this sequel took so long because I needed to work on the story. The original story was very confusing so I developed the story more. But I really like this version. I had to write off a character but it's for the best. The rating for this story will change into M on the next chapter. Because it will involve a lot of violence, blood, and torture. Just a warning for everyone. Anyways, have a good day/night!