((Long story short
The tattoo on the Rusted Red King certainly was an omen as it was actually the symbol of a group loyal to Liu Er for ages, beginning when during JTTW Liu Er had pretended to be Wukong and stole his throne. When they found out, they instead swore allegiance to him as they all found Wukong to be a lacking and unworthy leader and saw Liu Er as the rightful king. While impersonating Wukong, Liu Er had removed the original marshals Ma, Ba, Liu, and Beng, and replaced them with the others.
This group has four members
Canku, a silverback gorilla; Fuchou, a sub-nosed monkey; Nu Lie, a langur; Jiandie, a pygmy slow loris.
Of course when Liu Er was found out and killed, the group had to go underground. But their attention was brought to JYY soon after she killed the Rusted Red King and they offered her a chance to join them.
However when they found out Liu Er was married to Wukong, they denounced their loyalty and planned to kill Liu Er along with Wukong. But in the meantime they kidnapped Zuri to try and form her into their new future ruler, however Shubao followed after to rescue her.
While there, she was unfortunately caught and hit by one of Jiandie's poisonous barbs and was thrown into a cell. Which leads to this)):
((I'll reblog with the last part of the story because of Tumblr's photo limit in posts :/))