You know I want to," Noburi said immediately. "But I don't know if it's safe yet with my bloodline, I never got a straight answer out of Kabuto, and I never bothered asking Tsunade. Now I guess I never will."
"If you want to learn it, you need to make the choice," Hazō said. "No more relying on anyone. It's up to you."
Noburi thought about it.
"Not yet," he said finally. "Working with Tsunade taught me a lot about how bloodline research works, and I think I could try to figure out for myself if it's safe or not. I probably won't be able to tell for sure, but I'll at least be able to take a pretty good guess. And like you said, the Shadow Clone Technique is worth it. If gaining the technique means I can skip risking my death at some other point in the future, then it's worth a little risk now, right?"
"Computing which side of the tradeoff is favorable requires more detailed information on probabilities and frequencies of risks," Kei said. "In general principle, I would recommend against attempting the technique unless you are absolutely certain you can cast it safely."
"No such thing as absolute certainty, sis," Noburi said. "Not when working with bodies and bloodlines. But I'll see how close I can get."