"What the hell are you doing!" Miyako shouted. "Since when do you use weapons…? … You never told me about this!" She eyed Sakura warily. "I bet /she/ knew, didn't she!"
Kagome glared with cold, unfeeling eyes at both Sakura and Miyako, giving them a severe case of the chills. Sakura, however, did her best to ignore Miyako for the time being and instead focus her worried gaze on Kagome. /Something's wrong/ she thought. /Kagome /knows/ this form releases a lot of energy. Is she trying to attract some kind of demon/
Then it hit her.
It wasn't Kagome's doing at all. Sakura suddenly realized that the reason for her little sister's harsh scowl—and her transformation—was that she was under someone's control.
"Sakura! Answer me, dammit!" Miyako yelled impatiently.
"/What!" Sakura replied with equal irritation, snapping back to reality.
"You look worried as hell. What's the matter with you?"
Sakura's green eyes narrowed and a silence passed. Right as Sakura opened her mouth to tell Miyako, Kagome let out an agonized scream.
"Kagome!" Miyako and Sakura cried.
"I suggest you leave her secrets in the dark, human," growled a hidden but unmistakably familiar voice.
"Naraku!" Sakura screamed. "Leave Kagome the hell alone! You already killed Inuyasha! Isn't that enough!"
His villainous cackle bellowed out from nowhere in reply to her question, followed by a cryptically worded response: "That's only half of what I'd consider enough." Kagome then screamed once more, doubling over in pain and clutching her head with trembling hands. At that moment, a confused and frightened Steph appeared at the scene, kept silent by Sakura's warning hand.
"Get… away…" Kagome muttered faintly.
Sakura smiled at this. /Be strong, Kagome./
"/Run!" Kagome's eyes shot open, and then the Tamashii no Tama faded from silver to jet black. An invisible wave of darkness emitted from the jewel and swept over Kagome, turning her markings, clothes, and wings black as well. Her eyes dulled, and she lunged at Sakura with the sword. She dodged easily, and Miyako prepared to retaliate, aiming a half-formed fireball at Kagome. Steph stood back with her hand on the hilt of her Keyblade.
"Stop!" Sakura said to Miyako. "We're supposed to protect her, not hurt her!"
Miyako let the fireball dissolve, only to be forced backwards into a tree by a fist of dark energy. Sakura and Steph were also thrown off their feet.
Naraku's voice spoke with Kagome's: "You lose." With that, the girl vanished in a violent tornado of swirling black miasma.
"Kagome…" Sakura murmured, reaching out into the empty air. "Ka… go…" For a minute, it seemed as though she would lose consciousness, but then she leapt to her feet with a lively but angry scowl on her face. "/Kagome!"
"Damn that Naraku!" came Miyako's voice from behind the enraged blonde. She, too, appeared to be revived by a second wind.
Steph struggled to stand, coughing a bit as she asked, "Alright… can you /please/ tell me what's going on?"
Sakura turned to her, the angry look on her face not fading but growing worse. "You are only a burden to Kagome. You're no guardian. You don't deserve to understand the suffering she's been through." She was about ready to jump off the side of the cliff in a failing, suicidal attempt to follow Kagome, but Steph took the fleeting silence as an opportunity to speak, stopping Sakura from leaping to her death.
"I'm no less a guardian than Miyako," Steph muttered bravely. "I'm no less than you."
Miyako was obviously insulted. "Shut up, Keywielder! Kagome and I weren't sent by the Superior to /befriend/ you, you know. I was sent to protect and accompany Kagome during her mission to /kill/ you!" Steph released a shocked gasp for air. "And as for Sakura… Until Inuyasha's death/no one/ was able to surpass—or even /match/—the way in which he protected Kagome. Sakura holds the title of Kagome's best guardian now, as well as that of her closest friend, and her only family."
Sakura stared with nearly as much amazement as Steph did as the infuriated unsent finished her speech. Sakura looked as though Miyako had left out an important detail. Close to the point of tears, Steph stepped forward, looking strongly determined.

"Who… who is 'the Superior'?" she asked cautiously, afraid to upset either of the others any further. However, before Miyako could reply, Sakura stood in between the two.
"Shut up!" she shouted. "We have no fucking /time/ for this! We have to save Kagome!" She then ran past them in the direction of their home, followed immediately by Miyako and then by Steph.
"We have to get the guys, too," Miyako called up to Sakura. "We can't fight Naraku on our own."
"Yeah," Sakura replied as she reached the front door. "We're gonna need all the help we can get."