There is no direct overlap of the characters with the original ones. The characters were designed & drawn from scratch and the names are not the same. There is a similarity with the character Kei's name to the original character Kai, however that is because Kei's brother is called Rei. Our intention was to not copy from the original, so that small thing is just a coincidence.
The artist of the drawn assets has given me full authority, and they know about this. There isn't a formal contract since we didn't deem it necessary. The artist of the pixel works also gave us full rights before my contact to him cut.
Hello again, I recently updated the page with 2 extra preview images and it seems my content was blocked again.
Could you please unlock it? I'm sorry for the trouble.
Thanks for checking! Regarding your questions:
If there's any more questions, let me know!