The Red-Crowned Old Demon's carriage was pulled by three cultivators, also at the Golden Core level, but clearly less agile and flexible than the two pulling Nineteenth Aunt's. This is why the Red-Crowned Demon immediately asked to exchange when they first met.
There's nothing that can be done. Even though they tried their best to appear stiff, anyone can find traces because they are not truly rigid. Nineteenth Aunt had to use divine skills to cover for them; fortunately, along the journey, the Winged Demons accepted her explanation as commonplace.
As they approached the depths of the Kneecap Desert, dozens of Winged Demons drove luxurious carriages over, and to the other demons watching, everything seemed natural, and no one doubted the two anymore, thinking it was simply the norm for the West Sea.
This was the reason why the three of them had to travel onto the sea together, so it didn't appear abrupt.
