General: mind control
Images or animations depicting a character taking control of another character's mind by some means, most commonly hypnosis.
The exact methods used in mind control images and sequences vary wildly, from artificial machines meant to induce a state of suggestibility, to magical spells, to a character's natural ability, to old-fashioned watches swinging back and forth before the victim's eyes.
Although the tag could theoretically refer to any use of mind control, in practice it is almost universally used for images or sequences in which a character's will is broken down and they are made into an obedient sex slave and subsequently raped.
