Boruto Otsutsuki (Concept belongs to MiniNejiOwO?

A surgeing power

One week after boruto being in the hospital 

Boruto pov

I woke up this morning to hear momoshiki fighting with someone? I was confused by this so I wanted to see. I went into my mind and saw momoshiki fighting a tiny nine tailed fox.

"Who are you?" I said

"Nice to meet you Ona-Sama!" He said

"My name is Karukura and I'm your kyubi!" He said

"I'm his kyubi!" Momoshi yelled at Karukura.

"This is so confusing…" 

Naruto pov 

"Naruto wake up stupid!" Kurama yelled in my ear

I was startled awake and said "what's wrong?" 

"I sense my chakra in one of your brats, but I can't tell which one.." 

"WHAT? HOW?!" I screamed

"I will test them. It is most likely Himawari, Boruto is already a jinchurikii." I groaned out of bed.

"Ok" Kurama said

At the training grounds

"Himawari can go first, I'm busy right now" Boruto said staring off into space.

"Ok Himawari let's do it" I said as we began sparing 

Himawari lost to Naruto and now it was Boruto's turn.

Boruto stood up and got into his fighting position. 

He lunged at me preparing to attack and he fired a rasengan at me that I easily dodged. 

Behind Naruto, Sarada was sitting with Himawari. 

The rasengan was going straight towards Himawari and Sarada saw it and jumped into the way of the rasengan to prevent Himawari getting hit. 

I spun and saw Sarada on the floor in pain. 

I turned and saw boruto on the floor in guilt as a red chakra coat sounded boruto as he sprouted 1 tail and lunged at me. 

I dodged it and watched Boruto while I rummaged in my pocket to find a seal. "How is this possible?" 

I said and placed a sealing jutsu on Boruto as he fell to the floor.
 
I lifted Boruto and turned and saw Sarada and Himawari looking terrified. 

I walked over to them "how bad did you get hit Sarada?" I asked as she lifted her shirt to see a huge gash. 

"Can you walk?" I asked her and she nodded. I didn't believe her. 

Himawari looked terrified and didn't move a muscle.

I brought my hands together and created 2 shadow clones.

They picked up Sarada and Himawari as we ran towards the hospital. 

Sarada was in critical condition and Himawari wasn't speaking. I got to the hospital and was greeted by 2 nurses. 

I had the clone holding Sarada hand her to the nurses as they lifted her from my clone's arm and looked at her condition. 

"Thankyou lord seventh" one of them said and they rushed back towards the operating room. I went into one of the rooms and set Himawari on a chair and placed boruto in the bed.

Time skip to boruto's Awake.

BORUTO'S POV

I blinked my eyes open and cursed Karakura.

I saw dad meditating and I sat up and rubbed my forehead to feel a paper seal. I ripped it off and looked at it. 

"Your awake.." dad said looking at me

"What do you remember last?" He said as he saw me holding the paper seal that was on my forehead.

"I remember… sparing with you to some point then its blank" I looked at him as he sighed.

"Boruto, you really.." he was interrupted. 

"I finally realized why I felt my chakra in him." I heard a voice say that was confusing because we were the only people in the room. 

"Why?" I heard dad ask it. I don't think he knew I heard it.

"I had a son and his name is Karakura. When you made the seal he somehow also got sealed inside Boruto." The voice told Tou-Chan 

"Tou-Chan who are you talking to?" I asked I wanted to know who else knew about Karakura. 

"I look crazy don't I… talking to myself" dad said as he put a hand behind his head and smiled. 

"No Tou-Chan, what's their name?" He looked at me like I was insane.

"What do you mean who?" He looked at me. 

"The one that knows about Karakura? Who is it?" Dad's eyes grew wide open as he looked at me. 

"Y-you could hear that" he said looking embarrassed then looked at me.

"My kyubi, Kurama, we were talking about Karakura because his power leaked through your seal." I looked up.

"Why could I hear Kurama?" I asked. 

"It's because you have my chakra inside Karakura you can hear me speak to naruto" I was glad he spoke because dad looked like he hadn't known.