Uhh, not entirely sure to be honest. I had red haired Angela as my avatar for a long time and when I switched, I think I switched to another red hair character. From that perhaps the notion that Reiseng=Red was born. It wasn't actually on my part lol
It is however entirely true that I do love red haired characters, but how much of that love is because I somehow adopted this brand and how much is because I just like them, is well, unclear!
Side note: I can't reveal it, but my real name has a lot of references to red in it, so I've always been associated with the color.
(Apologies for the late response. Was too lazy to open Ask FM these past few days)