Kotoamatsukami

Apparently unique to Shisui Uchiha, this technique allows the user to control the mind of their opponent. It was a dōjutsu of the highest class, as the victim doesn't even realize they are being manipulated.

Danzō gained access to this dōjutsu by implanting Shisui's Sharingan into his right eye-socket. He subsequently used it to manipulate Mifune into almost giving him the supreme command of the alliance of the Five Villages. When this was discovered, Danzō responded that he couldn't use the ability multiple times a day.

It also seems that unlike a number of other Sharingan related techniques, it doesn't require direct eye contact, as Danzō never removed the bandages that hid it from view.

The Fifth Mizukage commented that she couldn't help but think that there's a connection between this technique and the power that controlled Yagura, the Fourth Mizukage.