This is a technique that seals the technique Amaterasu within the Sharingan of another person. After being sealed within the person it is involuntarily activated (indicated by the person's Sharingan taking the form of the sealer's Mangekyō Sharingan) when the eye sees its target, which is predetermined by the user.

Users
Itachi Uchiha

Classification
Ninjutsu, Fūinjutsu

Class
Supplementary

Range
Short-range