This secret spell is an important element in the Kolat’s methods for creating sleeper agents, but even when used by itself it is a potent weapon in the conspiracy’s arsenal. The Kolat typically use this spell when it is vitally necessary to conceal their operations without actually killing someone - typically because the person in question is too important to be easily disposed of.
Casting this spell requires the caster to hold the target by the head and focus on him for 8 hours uninterrupted; typically, the target will be bound to prevent interruptions. If contact with the target is broken for more than 3 minutes the spell will fail. At the end of 8 hours the shugenja makes a Contested Insight/Air roll against the target. If the shugenja wins the roll, the target’s thoughts and memories are rewritten and rearranged in whatever way the caster prefers. Mental Advantages and Disadvantages cannot be changed, but the target may be made to think he is someone else, to forget something that happened, to remember events or persons differently, and so forth. (This does not grant any Skill ranks, Techniques, or other actual capabilities. The target may believe he is the Elemental Master of Fire but this will not make him capable of casting spells.)