One Command (ワン・コマンド) is a Mental Interference Magic used by a Magician. The magic lasts up to a single minute when cast, however, the amount of targets can be as great as seven. The range of the magic reaches twelve meters, though its limit is that it can't be used on those who have a greater Mental Interference capacity than the user. When a target falls under the magics' influence they have no way to resist a designated command. The user can send commands to a target through thick walls.