@Solano
Even Billy couldn't achieve karametes by himself.
The reason why Baku made it was because of the seed(L-file) he planted from many years ago, so I really don't think Lalo, he doesn't have any Japanese subordinates in his organization, can do it.
About Bǎi lóng and Jonglyo. Yeah maybe he can convince Bǎi lóng, but not Jonglyo. I mean, telling this guy to stop chasing Kyara to death but to be a spy?
Plus he won't kill people other than his target, unless they get in his way.
And then about infiltrating, it's impossible.
1. Even Billy's identity was grasped by Nowa, Kakerou will definitely investigate their backgrounds before letting them join.
2. Neither Bǎi lóng nor Jonglyo has the IQ to be a spy.
3. Being a spy + becoming No.0 takes time, these two who has more important target won't have the patience.
And don't forget that Lalo has no men stronger than Voja or smarter than Billy left.
Bǎi lóng, Jonglyo, and Floyd weren't even a Ideal member.
Robert K isn't loyal either.
All the fighters he summoned were eliminated instantly by Yakou, except for Bǎi lóng.
The one who looked like the captain and had the brain, Torpe, was easily outsmarted by Midara.