However, it didn’t easily go his way. First, for something with strong ego like a human, he needed to continuously apply the spell for several hours or else he could not do the brainwashing. Naturally, that was if there was no resistance. As expected, there’s no one who wouldn’t react if he put the spell. It was necessary for him to put the target in a sleep-like state. If the target was a human, it would be too hard for him to hide and control brainwashing, circumstance-wise and time-wise. As he thought of what happened when he was found out, Shimizu couldn’t help but abandoning this because of the high risk.