A regular (not true) kara demon is something like:
LP, LP, f.MP, LK, HP
basically, you add MP in the middle of the demon motion ( --> de(mp)mon )
As you need to be near point blank in order to catch opponent with demon, you also need to hide the 2 LPs into something (dash, whiffed move/throw, taunt, whatever you want) or they’ll be hit and will be able to escape to demon due to either hitstun(or blockstun) or the fact they’re pushed too far from you.
With true kara demon, you don’t have to bother with this hide LPs thing:
f.MP xx LP, LP, F, LK, HP
Forward MP has already started when you hit LP, and will hide them. Your only goal is to be lightning fast in order to commit the demon before the f.mp hit.
True kara demon is the ultimate demon setup as it requires…no setup. But, it’s also way harder to do than regular.
For your video, you’re the only one being able to say if it’s a regular demon or a true depending on what motion you’ve inputted.