>>5508485“All dōjutsu come from the same place,” you explain. “I’m told it looks very similar too, so I’d be surprised if it wasn’t directly related to a common ability of Kaguya-hime’s rinnegan.”
Kōshū lets out a low whistle. “Well that’s an implication and a half. So am I gonna get to see this trick of yours in action?”
“Sure,” you nod. “Though I’m afraid it’s not much to look at.”
“You’re invisible when you’re a ghost?”
“That’s right.”
…
You carefully split off a portion of your spiritual energy - not all that dissimilar to creating a shadow clone without a body to go with it, which if you had to guess is how the Second Hokage probably performed a similar technique. He did after all invent many techniques, including the shadow clone and the Edo Tensei, the original reanimation technique which calls spirits from the Pure Land to inhabit a specially-prepared sacrificial shell. But in this case, to keep it stable, you split it off with a little bit of your physical energy as well - essentially, it’s a ‘clone’ without a definite form, rather than a true ‘ghost’. Otherwise it wouldn’t be a useful technique at all.
“... I’m not seeing anything,” Kōshū admits.
>Try to affect the environment using your ‘ghost’, kind of like a poltergeist.>Use a pretty ninjutsu or genjutsu, show off a little bit.>Interesting… play around with separating and combining chakra outside your body.>Other? 