JX1DX1 (This appears to be a call sign, likely for a radio station or operator.)

You woke up in a castle entirely red and black. The atmosphere was eerie and definitely dangerous. It was obvious you didn't belong here. Walking a little further, you found yourself in a long corridor. The wall to your right was decorated with... statues? Someone stood behind each statue. However, what caught your attention most was the dark silhouette of a figure at the end of the corridor. They stopped mid-step and turned around. "AND HOW DID YOU GET HERE?"

For a while in the series, JX1DX1's design consisted of bright red arms and head, a gray torso, and dark green legs. This largely featureless avatar was completed only by a sinister smile and eyes of varying sizes, reminiscent of a C-shaped face. Sometime after the first few videos, several black stripes appeared on his face, running from the top of his head to his eyes and then to the base of his head.