Talk:Doppeliner System/@comment-5671698-20121225013546/@comment-190.83.253.212-20150726095706

The anime said that if a Sub becomes the Root artificially, the new Root will have "-100%" Tera and thus is named a "Minus Root". This special event only happens if the original Root dies within a certain timeframe of the last 2 meeting and the Sub survives. The Sub, now possessing negative Tera can now leach Tera from other sources to sustain itself and therefore a contract formed with a "Minus Root" is considered to be an infinite investment due to potentially having infinite Tera.