Kakashi's Nightmare
Kakashi Hatake (or more accurately Kakashi's Shadow clone) sped through Konoha, performing important work befitting a proud Jonin such as him. To think Mr. Broody had
scoffed at this critical mission as a waste of time. While he wasn't wrong that any half wit ninja could survive in the wilderness just fine, Kakashi wasn't about to give up toilet paper if he didn't have to.
And so he dashed from shop to shop picking up various essentials, stopping only long enough to safely seal them away and leave money on the counter, Village shopkeeps long since used to ninja in a hurry. With one last stop at the bookstore for a piece of far more precious cargo he was just about set and ready to head back, when he thought of the two other adorable students he'd left behind. If he was in the village he should at least check up on them, even if he couldn't stick around.
Naruto was nothing if not a creature of habit, and to his utter luck of surprise he found the orange loudmouth sitting at the same stool of the same ramen stall as always. What was a far greater surprise was the man who was sitting next to him, as the Jiraya of the Sannin exuberantly regaled his godson of some wild exploit, Naruto ignoring him completely in favor of devouring his fourth bowl of ramen. In retrospect it only made sense for Jiraya to return home with the news of possible invasion and his old friend making trouble, but still Kakashi was reassured that Naruto was in good hands. Better hands then Kakashi most likely.
Although tempted to get his new book autographed he thought better of it, and instead left to find his last wayward student. He felt a bit bad about leaving without saying goodbye to her, and perhaps could make amends towards that. But the pink haired kuniochi was proving to be far trickier to find then her teammate, being absent from her home, the library, archive, and all of the usual training grounds used by Team 7. He was about to settle for leaving a letter in her mail and get back to Sasuke when he realized he was right near Guy's favored training grounds. Talking with him would be an exhausting affair as always, but Kakashi had wanted to ask about how his student was doing. And so he crept up with the trees as cover, worried that his 'Eternal Rival' would attempt an ambush.
But the fear was needless, as his friend was absorbed with an all out brawl with three other opponents. He wasn't trying especially hard obviously, but his opponents seemed to be doing impressively well, managing to keep the Green Beast on his toes, a feat not everyone could achieve. The only one he could see clearly was Guy's kuniochi student, as she kept a slight distance throwing countless projectiles at her sensei, her two comrades keeping him occupied . But her training here was to be expected given her surprise turnaround into the Third round. What caught his eye were the two guests, and he raised his headband to better make them out in the fast moving blur of melee.
The first he saw was the Yamanaka heir, pale blonde hair dirty with dust and sweat as she narrowly dodged a kick from Guy that shattered the rock behind her, and the dust cloud coming from it blocked out the fourth and final fighter, catching only a glimpse of pink as they closed in on Guy. But a second later the figure was thrown from the cloud and he saw the source of the pink. Kakashi's eyes widened as the familiar face of his third student came into view, but what held the bulk of his attention was what she was wearing. Gone was her usual dress, in it's place a... a...
an abomination.
Kakashi felt a thousand emotions race through him even as all conscious though ceased. Shock, horror, rage, hate, agony, betrayal. He was was shaken out of his stupor as his mask began to feel wet below his eyes, and realized the only possible explanation was an enemy genjutsu. And so he brought his hands together and with a firm
"Kai!" disrupted his chakra flow. He opened his eye's to see...
The exact same scene as before, and Kakashi's despair reached a new height as he tried to come to grips with what was evidently real life. But not every things was the exact same, Guy slowing down from his fight for a second to look at Kakashi's direction with a confused look on his face. This look morphed into a sparkling smile, and Kakashi felt for the first time in quite a while panic rise in him as he realized the that Guy must have felt the pulse of his chakra. He couldn't confront him like this, his student turned traitor by Guy's side!
But the Green Beast knew where he was and nothing could stop him.
Nothing except for Guy's three opponents using his momentary pause to all land a simultaneous blow on him. At once Kakashi fled, shunshining faster then he had in years. He needed to get far away from that hellscape, preferably somewhere quite and alone. The original Kakashi would probably start wondering where he was, but would understand when he got the memories. He needed a few hours to dive into his book sooner then expected, because even if those he thought closest to him turned traitor, Kakashi knew in his heart
Icha Icha would never betray him.
----
Just something I had brewing ever since Sakura bought a jumpsuit
Why?
None of the Sannin summons are particularly suited to Tenten, as much as she might fangirl about signing the Slug Contract. By contrast, the Turtle is a powerful mythic creature on par with a dragon, with some very obvious applications to our own affinity with weapons and ranged attacks, which appears in a variety of potent legendary roles and which our immediate sensei has experience in co-operating with.
And to metagame a little - if I expected any living thing to recognize a Solar Exaltation, it'd be whoever serves as head of the Turtle Family, considering their connotations with wisdom and immortality. In China, they're said to live 10,000 years. That's an interesting number.
Turtles are pretty great, but I think monkey's would suit Tenten even better. I mean their boss summons signature technique is to turn himself into a powerful weapon for his summoner to use. If rest of the summons are anything like that than it'd be hard to find a match more made in heaven.