Sakura dodged out of the way of those massive snapping jaws. She glared up at the dragon and readied her sword, though she knew that it wouldn't do much for her. She dodged another snap of the dragon's jaws, then jumped into the air as the dragon's tail swept at her. The dragon shot out a small burst of flame at her, which she easily dodged. The tail swept faster than she could dodge and she realized that the dragon had been testing her right before she got hit by the tail and flew against the wall. She shakily stood and looked up at the dragon, her sword a few feet away.
The Dragon inhaled deeply and then exhaled a large gout of fire at Sakura. She knew that she wouldn't be able to dodge in time so she rapidly performed seals and slammed her hands to the ground calling out, "Demonic Summoning Technique." A pillar of flame appeared around her and the flames formed into the shapes of wings, which blocked the dragon's fire blast and then unfurled revealing the demon standing behind Sakura. The flames dissipated leaving behind the winged demon.
"Well, priestess, you've gotten yourself in deep this time," The demon said with it's fiery voice as it looked up at the dragon, "Fine I'll take care of this overgrown lizard, but this will cost you."
Sakura bowed her head in acceptance as the demon drew a massive sword from it's back and lunged at the dragon, slicing across it's skin, leaving a fiery wound. The dragon roared in pain and then swiped a claw at the demon, who dodged it, but was caught on the arm by the Dragon's claws. Sakura let out a hiss of pain as the wound was recreated on her body, three bloody gashes appearing on her arm and leaking blood. She knew that this was part of their contract, that she would be hurt wherever the demon was, but if she was healed, so would the demon.
With that thought in mind, she began knitting the wound closed with her chakra and noticed that the Demon was being healed as well. The demon swung it's blade and, when the dragon reared back it's head to dodge the blade, breathed a gout of hellfire at it's chest. The dragon was not mortally wounded by it, being a being of fire and having near impenetrable scales at that. But it did start to burn and the dragon roared in fury, snapping its jaws at the demon. The demon did nothing as the jaws loomed closer, and then it swung its sword and severed the dragon's lower jaw. Letting out an inarticulate roar, the dragon swung it's paw at the demon, who dodged and swung it's sword again, severing one claw.
Sakura grinned as she stood, hearing the demon's voice in her mind, she performed a few seals and called out, "Demon Water Style: River's of Styx." She then added an extra seal, not normally used and the demon held up its arms in the same symbol as the chakra and technique were transferred to the demon, who could not perform jutsus on its own. The demon opened it's mouth and a stream of foul looking water escaped from it and struck the dragon in the face and some of it went down the dragon's gullet. The technique was a special one, known only by demons and their disciples, it not only worked as a stream of water, but also caused the target to forget whatever they had been thinking of at that moment. The dragon looked around confused, and then when it realized it was hurt, it desummoned itself back to it's home plain.
Sakura grinned as the demon landed beside her and said, "Remember the price." And then vanished in a pillar of flame.
Sakura nodded to the empty air where the demon had been, and then turned to the leader who just nodded his head and said, "Very well, you passed, though I must speak with you about the demon soon, however, for now you shall be initiated into the Akatsuki and be given a new ring, Deidara's ring having been lost during his death."
He handed her a ring with the kanji for demon on it and Sakura smiled at the irony of it.