dead

"Congrats Bakabito!!" Kakashi congratulated.
"SHUT UP BAKASHI, DON'T RUIN MY PRECIOUS MOMENT!" Obito yelled proudly.
"Cute" Kakashi responded.
"I TOLD YOU TO SHUT UP BAKASHI!!!" Obito yelled again with a red face.
"Cute Indeed" Rin interrupted them.
"Not you too, Rin-chan" Obito said with a face palmed.
"You remember i talked to you about meeting near that cherry blossom tree" Rin whispered in Obito's ear.
"Ye-yes Rin-chan I'll see you their" Obito said still blushing a Lil.
"Well so I have to go guys, see ya" Rin said and left.
"Bye Rin-chan" Obito said while Kakashi just nodded.
"What did she say" Kakashi asked.
"I am not telling you" Obito replied and ran away.
"Nevermind then i guess..." Kakashi said.

"He sure doesn't look like the type of guy who would start a War" Kakashi heard Orochimaru's voice, who was standing behind Kakashi.
"Oh Orochimaru...san, what are you doing here?" Kakashi asked.
"Nothing, I was just passing by and saw you and the Uchiha" Orochimaru replied.
"Woah... I hope Obito is not the one you are targeting" Kakashi said.
"Oh no no, that would change a lot of things... besides i am not even looking for an Uchiha host anymore" Orochimaru said.
"Huhhh.. I can't wait for the third great ninja war" Kakashi said in an annoying tone.
"Well, how is your body? i hope those cells aren't troubling you?" Orochimaru questioned.
"Nahh not at all, my chakra reserves are already twice compared to the past chunin me" Kakashi said.
"That's an impressive growth." Orochimaru said.

(Of course it's impressive... I have finally stopped slacking off and half of the time i am just doing Chakra training. My Precious Eternal Rival also helped me a lot with my stamina and i don't have to try practicing other Justus cuz i already know enough and you know...cherry on top Hashirama Cells) 4th wall break.

"Thanks, I guess and anyways see ya i gotta go meditate a little" Kakashi said.
"Alright and let me know when you are ready" Orochimaru said.
"I will" Kakashi replied and left...

"Obito! you came" Rin said as Obito approached Rin with a bouquet of flowers hidden behind his back.
"What's going on Rin, why are there so many people here" Obito asked with confusion.
"They are all here for Kakashi, you know he is going to be a Jonin and everyone is gathered here to discuss what we should give him as a gift" Rin explained.
"Oh, so that's why you wanted me to meet here" Obito said.
"Yes and, I also think we all should be proud of him as his friends" Rin continued.
"I understand" Obito said with a sad smile dropping the bouquet of flowers.
"What gift do you think Kakashi would like?" After talking to Obito Rin continued to talk with the other girls. "Well it's Kakashi we are talking about, so it definitely should be something useful" Kurenai said.

Time for a short time skip ig 
*Time Skip to 3rd Great Ninja War*
(Kannabi Bridge Mission) 

Kakashi, Obito and Rin were all running for their lives after the Cave was heavily destroyed and boulders and big small rocks were falling everywhere.

While the other two were scared one-eyed Kakashi knew everything when and what was about to happen and he was just waiting...

'Here it comes right in my blind spot' Kakashi thought as he saw a little rock came flying towards him...'don't evade don't evade don't evade' he repeated to himself...'even though you have been extra annoying he will still come to save you. Its Obito he will save you and that's how everything should go. You need that Sharingan, Kakashi' he said to himself.
And just when the Rock was about to hit Kakashi's left side of head...he ducked and saved himself.
'No no no no no no no no you were not supposed to fucking duck you fucking idiot'. He cursed himself. 'What now what now what now' he was thinking rapidly or rather, he was just uttering words a little loudly.
"Kakashi!!....KAKASHI" Obito gained Kakashi's attention.
"The exit let's go" Obito said smiling as he pointed at the exit.
"Yes~" Kakashi replied in a disturbed tone.
"Let's go Rin-chan" Obito said and Run replied "let's go" smiling.

All three of them made out safely...Both Obito and Rin were happy and enjoying themselves while Kakashi was still thinking about what to do...
"Look at our leader all scared" Obito teased Kakashi.
"Come on Obito, maybe he was just really worried" Rin said.
"Hai hai...Oii Kakashi we did it-...." A sword pierced through Obito's body when he was still talking.
"OBITO" Rin Cried and Kakashi got in fighting instance but he was trembling heavily.
"Obi..ito" Kakashi said still trembling.
It was Rock Ninja who maybe somehow survived...He then removed his Sword from Obito's body and kicked him back inside the cave. Obito landed on a pointed broken rock which pierced or destroyed some portion of his right body...His chest, His ribs were visible and his right hand already looked like it was removable...but still he was somehow alive.
"OBITO" Rin followed Obito back inside the cave only to get traumatized.
"I'll Kill you" Kakashi threatened as the purple lightning covered his hands.
He charged at his opponent with his full speed and with all the intention of killing. But his opponent was faster. He jumped back and back and back again and then vanished.
"Where are you? Show yourself" Kakashi said but there was no response. So Kakashi too hurried back inside the cave. He saw Rin crying and sitting next to Obito, who looked dead already.

"I am sorry... I don't think i can save him Kakashii" Rin said crying.
"Obito i am sorry" he apologized to Obito.
"don't-...Bak...kashi." Obito struggled.
"I didn't give you any gift for your promotion, right, Kakashi... and you know it would be hard to fight with just one eye...so here i am giving you my left sharingan" Obito said.
"I don't deserve it" Kakashi said.
"Yea, I know, but I still want to give it to you...and I also want you to protect Rin...please Kakashi" Obito said with a smile.
"Can you please...do it Rin?" Obito asked rin.
"Yes, but it might kill you instantly, Obito" Rin said.
"I am gonna die anyway, Rin, sooner or later i am going to run out of blood...and i- i...also want you to know i loved you, Rin" Obito confessed.
"I am sorry Obito... I didn't realize it earlier" Rin replied.
"It's okay Rin bye bye...and bye Kakashi" Obito said.

Rin started the procedure to remove Obito's eye...and transferred it to Kakashi.

"Man dying is hard" Obito said after everything was done.
"Idiot" Rin said.
"And what about my right eye? Do you want it Rin...my right sharinga-" Land and the Boulders started shaking again when they were talking.
"Get out of here both of you...Kakashi take rin and go." Obito said.
"Let's go rin we still have a mission to do" Kakashi said.
"Bye Obito". They both said and left before the cave could start collapsing again and just as they left it collapsed.
Rin fell to her knees after seeing that.
"Please tell me you already killed that man who did this to Obito" Rin asked crying.
"I- I am sorry Rin, he escaped..." Kakashi mumbled.
" I see" Rin replied.
...................... ......................
Meanwhile, inside the Cave...

Obito closed his remaining eye as he saw large boulders about to fall on him. But not a single one did. They were all destroyed by a single man.

"Konoha's Shinobi" he said as he landed in front of Obito. Obito opened his eye and recognised the figure standing infront of him.
"You are in pretty bad shape" He said.
"Yeah and you should have just let me die...Orochi...maru-san that's what...your name is right... legendary Sanin" Obito said.
"Yes" Orochimaru said as he started healing Obito.
"Don't bother. I don't think i can be...saved now" Obito said.
"I know.." Orochimaru stopped. He actually wasn't healing Obito, he was just making sure Obito survives until white zetsu arrives.
"Sorry Little Uchiha" He left after saying that.
"yea whatever..." Obito closed his eyes again, waiting for death.

Soon after Orochimaru left, a couple of white zetsus came and one of them merged itself with Obito's body to save him.

"Let's go" they all said without realising someone was watching them. Of course it was Orochimaru...and he was there for the white zetsus.

He came out and appeared behind them...they were total 9 and 6 of them were holding Obito's body. 

"Oh no, not a good thing" one of the zetsu said.

"It's Konoha's Shinobi" the other one said.

"Let's go quickly". The third one said they all started running expect two who attacked Orochimaru.

"Two are enough, i guess" Orochimaru said as he dodged their attacks.

Orochimaru made a few hand signs and two big snakes came out from the ground and swallowed both of the white zetsu and then vanished.

"Finally" Orochimaru said.