characters names from big hero

This novel is the exact copy of " From sidekick to big shot " novel. Its just that the characters names are changed but overall all the things are same

The novel is great, I loved it. However I think there's a big plot hole and it kinda bugged me so I'll say it here: for me, since you said that there are other chosen hero from Earth and we know that the 4th of life and the 6th of space were from Earth, all the different reference the MC makes, like equipment's names techniques's names, and the mythology in general are just painting a huge target on his back for me. If I were the mysterious group hunting him and I came across those I'd investigate this immediately... (I have nothing against the reference themselves, just that it's as if the other chosen hero from Earth are stupid and that the previous hero from Earth never told their friend and lover about Earth culture.)

I have started reading it without checking the details, only when it ended i figured that it is not the whole story. As I found the raws from the comments, I noticed that even the characters names are different, not to mention the plot where it ends. it is a big disappointment to me!

Im wondering if this novel is a side story of the manga one piece after reading the first 5 chapters. Some characters are big shot names in the world of one piece who create a big impact to that world. Is the author of this novel related to Oda the creator of one piece? If so, this novel contains fact from the world of one piece. Can someone explain to how this novel came up.

I think its great, however there are a couple of problems. the first is that some, not all, of the side characters are rather annoying and i wish they appeared less, the second one is not that big of a deal but the names are all chinese, it just kinda seems unreallistic that ONLY china made it to the space age not to mention i already have trouble remembering english names it makes it that much harder to attribute names to the characters