Neo-Core

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A neo-core is a former corelet in a system that is no longer empty who is similar to a core, but with a direct connection to the body's temporarily non-plural self prior to re-splitting instead of the body's fully pre-plural self.

Corelets do not always become neo-cores upon re-splitting. The longer it takes for a system to re-split, the more likely it is that a corelet will develop into a neo-core, due to spending more time as a pseudo-singlet. In systems who re-split more quickly, a corelet may feel that their experience is more similar to being temporarily front sealed, as it may have less impact on them than a headmate who spent months or years alone.