Yuuki, Cream, and Knuckles all raced to the park laughing as they were having fun. Knuckles had a hard time running to catch up to the half mobian girl as he stopped to catch his breath, Yuuki placed Cream down and went to see if Knuckles was okay.

"Knuckles? You okay?" She asked as she didn't notice the smirk he had as he placed his gloved hand on her shoulder and smiled slyly at her.

"Tag, now you're it Yuuki." He said as Yuuki was shocked at what the echidna did, he tricked her!

"Okay Knuckles, now you're gonna get it now!" Yuuki shouted as she chased the red guardian of the Master Chaos Emerald until she finally caught up to him and pounced on the red echidna.

"Now you're it, Knuckles." She said as she brushed herself off, she had an awful chill up her spine like someone or something was watching her. She turned around to see nothing in the shadows, Knuckles walked up to her and noticed the odd silence as well.

"You feel that Yuuki?" He asked as she nodded but never taking her eyes off the tree's shadow until evil laughter was heard from around them as Yuuki pulled out her sword and Cream was held close to Knuckles' chest keeping her safe.

'Such an intriguing little group of heroes here all alone. But what's this? One of them is half Mobian.' The voice was echoing around the empty park as Yuuki tried to trace the source until she saw the shadows moving creating a form that looked like Shadow but with dull grey quills, a pale muzzle with no mouth, and striking green eyes that could suck out your soul.

"Mephiles!" Knuckles shouted with venom in his tone and Cream whimpered at the sight of the demon as Yuuki held her sword in front of her, but she didn't like the look of Mephiles but he sure did reak of pure evil but she kept her guard up.

The demon laughed when he saw Yuuki trying to be brave when he knew that deep down, she was scared.

"Who are you?!" Yuuki shouted which made the demon laugh once more at her feeble attempts of courage.

"Ah, yes where are my manners. I am Mephiles the Dark my dear. And you must be that blue hedgehog's sister, am I correct?" He said with a small purr.

"So what if I am?" She said at the demon who was behind her and began stroking her hair and smelling it. Yuuki hated how that felt as she pulled her hair away from his hand.

"Mmmm, you smell wonderful my dear."

Mephiles chuckled as Yuuki backed away from him and saw red cubes floating around her as she sliced them.

(I took the photos)
They all burst into red shards and disappeared revealing a masked jackal.

"Infinite!" Knuckles shouted as Cream held Cheese closer to her and Yuuki in front of them with her sword in front of her.

"Well, well, well. It seems that I have not been forgotten around here and what's this?" Infinite said adjusting his mask as he looked at Yuuki with a slight purr. But Yuuki felt disgusted at his purr as she raised her sword at him.

"I'm Yuuki Konno Hedgehog! Sonic's sister!"

That made the jackal laugh.

"So, the little blue rat has a sister and she thinks that she can take on me? Well, alright. Let's fight!"

Infinite summoned all of the red cubes as they were sliced up again by Yuuki's sword as she used
[Air Violet] (video below) on the masked jackal which made a huge crack in his mask.

[There should be a GIF or video here. Update the app now to see it.]

"What?! Impossible?!"

"Now that's a word I can't have in my dictionary!" Yuuki yelled as she used her vorpal Strike at him.

Both Mephiles and Infinite retreated after seeing Yuuki fight Infinite, but it was strange enough for them to leave the battle.

"I have a feeling that those two would be back somehow." Yuuki stated as Knuckles nodded and began walking Cream home and Yuuki flew back to her and Sonic's house where she got into bed and thought about what happened.

"Yeah...what did those two want?"