Name of Kekkei Genkai: Mind bending curse mark
Abilities of Kekkei Genkai: This is how the mark works. First it is implanted into the host (usually the forehead). A black symbol will appear were the mark was implanted. For it to be activated someone else (other then the host) must touch it. The symbol scans the Dna of the person who touches it and records it If it is the first time the symbol encountered the Dna it will listen in to any words that the other person says. That word (or words) because that persons password. Whenever that person says the keyword the mark will turn on (or off if it's already on). Once activated the host must do whatever the person verbally wishes.
Appearance when using Kekkei Genkai: When inactivated, it appears as a black symbol. When activated, it will glow red.
History of Kekkei Genkai: Some of Orochimaru’s scientist were designing new curse mark jutsus for him. This certain curse mark is one of the many products of their research though it did take several fail experiments to do it.
Drawbacks of Kekkei Genkai: The entire Kekkei Genkai is one huge drawback. No one in there honest mind to actually want to have it. It gives absolutely no benefits for the host.