Naruto: Causation

Yukino sat with Tenten in the Konoha hot springs. They were enjoying a bit of time to themselves. More accurately, Tenten wanted to know something and she figured that this would be a good place. The two of them leaned against the edge of the hot spring with their arms rested on the top of the ledge.

"Yukino-san, there's something that I've been meaning to ask you." Tenten said.

"What is it?"

"What do you think of my brother?"

"He's a good guy. Why do you ask?"

"Well,…I'm still worried about him because he's still kinda getting over Azumi. They were close and we both know the situation. But the two of you have been hanging out together and I guess…"

"Don't worry. I don't plan on hurting your brother and I like him a lot but he is still healing from an abrupt end."

Tenten smiled.

"I don't mean to cut this short but I've got to go meet the Hokage." Yukino said standing up.

She wrapped a towel around herself and walked off. Tenten just sat there and relaxed her body.

Satori walked with Junshin and Shuji when he heard his named called. The three of them turned around to see Yukino running up to them.

"What's up?" Satori asked.

"Hokage-sama wants you to report to her office. She's going to send us on a mission."

Satori sighed. "Why is it always me?"

"Well Naruto is out on a mission and she wants you to go on this mission."

"Plus Satori, you can go on a mission with a cute girl." Junshin said.

"I'm telling Tenten that." Satori said with a smile.

"Well played." Junshin said smiling back.

"I guess it can't be helped." Satori said walking away with Yukino

Junshin and Shuji continued walking.

"So anyway, I've been working on my agility by dodging Tenten's weapons." Shuji said.

"Well Tenten and I have been…." Junshin was cut off by a loud thud.

He looked to his side to see that Shuji was no longer there but was about a foot behind him on the ground.

"Yeah you really have been working on your agility, seemingly how you tripped over something that anyone could see."

"That was the problem. I didn't see it."

"So much for the mighty Sharingan." Junshin smirked.

"It's not that I wasn't paying attention. My vision just went blank for a second." Shuji said.

"That's weird. Let's go to the hospital to get you checked out."

The two of them later arrived at the hospital. Shuji sat on the examination table while Junshin sat in the waiting room. He sat there twiddling a kunai between his fingers on his right hand. He looked up to see Tsunade and Shizune walked past him and down the hall. Junshin's left eyebrow slightly raised.

"I wonder why they're here." He wondered.

Tsunade and Shizune stood in the room with the doctor and Shuji. The doctor held a few papers in his hand and his expression wasn't a pleasant one.

"It would appear that due to his two bloodlines collaborating with each other it has caused a side effect."

"Which would be?"

"Blindness."

"That can't happen." Shuji said. "I mean I'm half Uchiha. One of our great abilities is the Sharingan."

"Yes, the Sharingan is a great ability." Tsunade said. "However, there have been past Uchihas that have gone blind."

"Is there any way that it won't happen or something that will treat it?" Shuji asked.

"No. It's going to happen. You will go blind." The doctor said.

"How long before I completely lose my sight?"

"A week. A week and a half, tops."

Frustrated, Shuji took off out the door and down the hall. He nearly barreled over Junshin who had just stood up and was standing in his way. Junshin turned back to see Tsunade and Shizune walking down the hall towards him.

"What's going on, Hokage-sama?"

"Due to the combination of the Sharingan and the Shiyoukinshi, it's causing him to go blind." She said.

Junshin turned back to the doorway.

"Even the Sharingan has its weak points." He thought to himself.

Shuji ran down the streets of Konoha completely aggravated at the fact that he was going to lose his sight. He ran to the old Uchiha district and sat on the steps of his mother's old house. He placed his head in his hands.

"What am I going to do? If I'm blind I won't be able to be a ninja anymore. I'll lose everything I've worked so hard to gain."

Then he remembered what Tsunade had said.

FLASHBACK

"Yes, the Sharingan is a great ability." Tsunade said. "However, there have been past Uchihas that have gone blind."

END FLASHBACK

"That's it. I'm going to have to do research on which Uchihas have gone blind and see how they coped with it."

He stood up and ran for that Konoha library.