Fun fact, Idan as a character was in a lot of ways inspired by Neji Hyuga from the anime series Naruto. And Neji was actually my first and most favorite character in the history of anime(still is) and the reason my pen name is CherHyuga.
Also, before Destiny Indeed became what it is (2017, and I was 16 yes old back then), all the characters were in the world of Naruto so I'd made a series in that world as a crazy fan and they were still kids, teehee) Idan Hyuga was his name (lmao) back then, and he greatly admired Neji too. He also had white eyes and byakugan! The story and course of things drifted from the Naruto world as New original ideas kept popping up. That's when I removed them and created the new world they are in now. And alas, the being named Idan Naol Higan was made✨
There are still some Naruto inspired things in the current Destiny Indeed though, for example the whole concept of abilities, Idan's wind manipulation was inspired by the air palm jutsu.