Now that Koyshiro's identiy is finally revealed, people still think there's a spy. There's none.
One thing I think people don't understand is how one learns about the crescent tattoo.
Let's remember that Oden died 20 years ago. Sometime 20 years ago, people took up crescent tattoos as a sign of their backing of the Kozuki clan.
Who knew this information? No one but those with the tattoo.
- We know this for a fact because Orochi never arrested any of these people for the past 2 decades.
- Shutenmaru has been trying to recruit people for over a decade, yet didn't know to come look for these people.
No one knew about the tattoo. So, how does one learn of the tattoo? One only learns of the tattoo IF the people with tattoo tell one it's meaning.
- Bare in mind Kinemon (leader of the scabbards) didn't know about it until he appeared 20 years into the future and got told by the people with tattoos.
- For 2 decades, no one has been arrested.
- For 2 decades, these tattooed people haven't been recruited either.
What's my point here? Not even Kyoshiro/Denjiro knew what the crescent tattoo meant meaning he couldn't be the leak.
Who then leaked the meaning of the tattoo? Someone who knows what it meant.
I'll just drop some small details. People have just been forcing someone to be the culprit without evidence.
Some are blaming O-Kiku, but let's not forget that the scabbards appeared from 20 years 3 months ago. O-Kiku has been inside of Wano for 3 months while Kinemon and co. went out searching for allies.
- For 3 months, the crescent tattoo wasn't leaked meaning O-Kiku couldn't have been the leak.
So, who is the leak? One thing people are assuming is that a leak means an enemy (or attempt to sabotage). A leak doesn't necessarily mean saboteur or that the leak is an enemy. Leaking information could be to the benefit of the alliance. In many cases yes, but it in principle doesn't.
Rushing to my conclusion here, I'll just say:
- There was no leak in the alliance until Luffy arrived.
Am I blaming Luffy? No, nor am I blaming anyone who has been with him outside of Wano until now. Luffy's arrival is just a hint at who the leak is.
The leak is someone who became aware of the plan after Luffy arrived; Luffy's arrival is a reference point. What we can deduce from this is someone or something changed after Luffy arrived, thus a leak.
- What changed? Shutenmaru got involved.
Shutenmaru being recruited by Kinemon failed, and a day after, people with tattoos start getting arrested? He's likely been told the plan by Kinemon and I can't help but think this isn't coincidence.
Take to mind that Shutenmaru got invited by Kinemon to join the alliance, they both have the same goal, but he declines? Odd.
- We do however know Shutenmaru has been trying to recruit people for 2 decades.
- He's been gathering ships for 2 decades.
- He stole blueprints to Kaido's mansion.
Yet, why doesn't he just join with Kinemon? Probably due to anger and frustration, but my point here is he's been secretive.
- Even after he joined with Kinemon, there's a shot of Shutenmaru and Denjiro haven fought against Kaido, but when Kinemon brings up Denjiro, Shutenmaru doesn't say a thing.
All this implies Shutenmaru is being secretive and knows more than he lets on. He could just have let Kinemon know he's been planning to take on Kaido for these past 2 decades and has been preparing things here and there, but he's been quiet.
Why would he leak the crescent tattoo? He's been trying to recruit people for 2 decades and didn't recruit that many. He probably wanted to test the legitimacy of Kinemon's claims and see just how many people were willing to fight against Kaido.
More so, if he knows about Denjiro's identity, it just makes a lot more sense. He knew they wouldn't be killed off.
Furthermore, whoever was leaking clearly didn't leak information to harm the alliance:
- Prisoners are not harmed, they're basically just relaxing in the capital.
- No leak about Momonosuke of all people despite the fact whoever leaked will know where he is; taking Momonosuke out would have ended any attempt on Kaido or Orochi; Momonosuke is why they're fighting, he's a remnant of the Kozuki name.
- For about 2 weeks, the leak has known the hideout of the scabbards, and never leaked their hideout until they all left.... (meaning no one was harmed...)
- Orochi himself even stated despite all his actions that he doesn't really believe they're alive meaning the leak isn't confirming anything to him.
In essence, all the leak has resulted in is feeding Orochi's paranoia and now he's about to have his guard dropped. Denjiro's in charge of the capital; the alliance is likely heading to the capital; things couldn't be better.
The leak is likely Shutenmaru, but he isn't leaking things to sabotage the alliance, he's leaking things to find out information and to fool Orochi.