Naruto: I Can Take People Through the Ninja World in the Future

"Cough-!"

Obito suddenly coughed violently.

Moreover, an overwhelming sense of kidney deficiency surged through his body, causing him to stagger and nearly deactivate his intangibility.

'What's going on? Why do I suddenly feel so weak?'

'The last time I felt this weak was the last time. It shouldn't be like this!'

'It's only been a few minutes since the battle started? Have I become so weak? Not even as strong as Kakashi?'

'Impossible, absolutely impossible!'

Obito slowly realized the truth. It turned out there was something wrong with the air he was breathing! It seemed to contain an unknown poison that was eroding his flesh.

This made him feel weaker and weaker over time.

But where did the poison in the air come from?

Obito looked around and spotted the culprit—Orochimaru in the distance!