autism

Therefore, Momonga concluded that these changes, in particular the mental changes, were part of the undead immunity to mind-affecting effects.

Right now, he possessed an undead body and mind, but there were some remnants of his humanity left. Therefore, even when he experienced emotions, if they surged to a peak, they would be immediately suppressed. If he continued on like this, he might end up losing all his emotions in the future.

Of course, even if that happened, it would hardly be a big deal, because no matter how this world turned out or what happened to his body, his will was still his own.

A terrible sense of loss filled Momonga, and he instinctively glanced down to his waist.

“Could it be… it vanished because I never used it?”