"...killed one of her own personalities."
Liu Di pondered slightly.
Peach had split personalities.
A cold, domineering older sister.
A cute little girl.
Peach's form of life was very similar to that of humans.
So it could be understood through the human brain.
Split Personality.
Its scientific name was dissociative disorder.
It was generally caused by major stressful events. When the person could not accept reality, or when their mental endurance regarding something reached its limit, the brain would selectively forget certain memories in order to protect itself.
When entire blocks of memories were forgotten, they would act under another identity.
From the outside, it looked as though two souls lived within one body.
The greatest number in human history had been thirty-two souls living in one body.
They switched at random and had absolutely no memory of what the other souls had done.
These souls encompassed shifts in personality, identity, profession, and even psychological gender.
In more extreme cases, corresponding abilities could emerge because of a soul's identity.
For example, one patient had a hidden personality that was a Butcher.
One second before switching personalities, he might have been a well-behaved fifteen-year-old student. But after the switch, he could completely butcher a bull in fourteen cuts.
Sometimes, Split Personality was roughly equivalent to switching "abilities."
Of course.
Many patients were also fully aware that they had multiple personalities.
These personalities even held regular meetings within the patient's mind.
If the patient's primary personality was kind, they would view their evil personality as they would a criminal.
The evil personality would be denounced.
It might be killed on the spot by an enraged personality during the meeting.
Or it might be imprisoned by everyone, never again allowed to control the body.
From an external perspective, that evil personality was effectively