For right now they're simpley called "the female delinquents."
They are not fully implemented and cannot be recognized par Info-chan.
toi can find them in Markiplier's vidéos link at 14:57 and link at 6:43.
EDIT: for whatever reason the liens may not take toi to the vidéos - just YouTubes' homepage. So, the linked vidéos are: - SUMMON DEMONS FOR SENPAI | Yandere Simulator #6 - POISONING FOR SENPAI | Yandere Simulator #8