HAVE YOU SEEN THE TRAILER!?!?! Now here come my theories!!!!
1. more than a year ago I told my theory that the Golden Legend is directly connected with DR. Then I said that perhaps the dragon disciple is Riyu in the future. So if you look closely at the trailer for Monstrosity, they are united with GL not only by the visuals, but also by the fact that closer to the middle of the trailer Kai begins to look like the monsters from GL. Throughout the trailer, you can see moments of Kai trying to get back his red headband, which symbolizes his identity, which he is afraid of losing. THE BANDAGE IS THE ONLY CONSTANT COLOR ELEMENT IN THE VIDEO. So the theory that GL is directly connected with DR makes even more sense!!!!!
2. WHAT IF IN THE SECOND SEASON, WHEN THE NINJA SAW THEIR FEARS, WE WERE NOT SHOWN KAI'S FEARS BECAUSE THEY WERE RELATED TO MONSTROSITY!!!!
Welcome to me being Charlie Scene yet again, because I bought a hat