So... my team is already getting a little far ahead. We're now in the next day. I think we're going to have to hold off for a while while everyone else catches up. 

Conversely, there could be a very short timeskip or something. I don't know.

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Another note, for those who may think I'm making shit up as I go with Kirugetsu.

He doesn't actually know Gentle Fist. He was trying to get Maruki pissed off at him, to use his anger instead of keeping it bottled up. In addition, the piercing of the Hyuga Heart did NOT give him knowledge of Gentle Fist. He is merely using what he has seen in his fights with Hyuga Clan Shinobi in the past. He is not some Hyuga/Hozuki hybrid monster.