Who's the real one kopa 或者 fluffy 或者 both?

Fluffy is the official character of TLK with no gender references. Fluffy is a unisex name that the TLK creators
of the film gave it. it's not the cub's final name, Fluffy is seen in TLK 2 trailer for baby Kiara which known Fluffy is the same character as Kiara the cub has gotten a gender while TLK 2 was under production. In the beginning of TLK 2, Timon thinking Kiara was a boy, then Rafiki correct them, "It is a girl".

Kopa on the other hand is only from a few non-canon 图书 that are not Disney's creation but created 由 outsiders that did not worked with the Walt 迪士尼 company which had 迪士尼 stamp placed on the 图书 and those 图书 were only released in the U.S.A.
So the answer to this question: "Who's the real one Kopa 或者 Fluffy 或者 both?
The answer is: Fluffy.
Since Kopa isn't, known he isn't from the movie universe while Fluffy/Kiara is.
The truth: Kiara and Fluffy are the same cub.

kopa is the real one

Like some here have already said, Fluffy was a non-serious name 给 to the cub when 说 cub had no real identity.

According to the creators of Simba's Pride, Fluffy is Kiara, and according to the writer of Six New Adventures, Fluffy is Kopa. Kiara and Kopa have never co-existed in anything with Disney's name on it though (Kiara and Kopa being siblings is 100% fanfiction).

That said, Simba and Nala are getting a son in a new 迪士尼 Junior TLK based franchise! Named Kion, I think? I heard a rumour that Kiara is going to be in it, but I'm not certain if it's true. If it is though, she finally will have a brother in something official!

But yeah. Fluffy is the "real" one if you're going 由 what the creators of the original film said, but Fluffy can be either Kiara 或者 Kopa depending on which material 你 are going by. Both Kiara and Kopa are "real" in their own existences, but Kiara's not real in SNA and Kopa's not real in SP.

Its kopa not FLUFFY!!!!!!!!