!! FridgeHorror:
* [[spoiler:Once you realize what the school is for and that Mashiro is actually two different people, you realize that Fem!Mashiro just killed her brother in the womb.]]
* [[spoiler: In a similar vein, it is stated that when a student misses the class three weeks in a row, they lose all the progress they made and give up. This is heavily implied to be miscarriage or stillbirth.]]
* Given the revelation that [[spoiler:none of the characters technically exist yet]], it's not clear how [[spoiler:Kureha could've been raped as a child or Sou could be in an incestuous relationship with his sister if they haven't been born yet]]. Perhaps this is less that [[spoiler:they've ''experienced'' those things]] and more that [[spoiler:they're actually ''products'' of those things]]. Doubles as FridgeBrilliance.