One Piece: What is CP0 Doing in Wano?

gamerant.com:

Wano Country's Arc is one of the biggest storylines in One Piece, and it involved a wide spectrum of characters. There are numerous pirates, samurai, minks, and also ninjas that fight against Kaido in this arc. On the other hand, there are also countless pirates and samurai that choose to fight alongside Kaido. Not only that, six pirates from the worst generation and two Emperors of the Seas are also present here.

Unbeknownst to most people, sitting silently amidst all of that chaos is one of the World Government's most valuable and dangerous assets, the CP0. This article will talk about the reasons why one of the World Government's special representatives is present in a foreign country during what could only be considered as a war between multiple highly influential pirates' factions.

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Cipher Pol Aigis Zero, better known as CP0, is a part of the World Government's intelligence agency, just like CP9 that the Straw Hat's encounter in Water 7. However, unlike CP9 that is specialized in infiltration and assassination, CP0 is reserved to do the hardest and dirtiest job not only for the World Government, but for the world's nobles as well. That is why CP0 consists of incredibly strong people with a power that is on par with the former Whitebeard's division captains, such as Marco and Izo.

There are eight members of the CP0 that are currently known, four of which have yet to reveal their name. The ones that we've already known and seen are Rob Lucci, Kaku, and Spandam, the former members of CP9. There’s also a woman who is known by her undercover persona as Stussy, one of the Emperors of the Underworld. We saw her for the first time during the Whole