As time passed the references to the missing memories became more prominent.

You yourself have confirmed at least one event that was alluded to as an unholy reality. Fuyuhiko Kuzuryu. The cruel fate of his most beloved sibling. Mahiru Koizumi. The unresolved fate of her most beloved friend.

Just enough information was revealed to deliberately incite malcontent to make us turn upon one another. Rendering tragedy on themselves and all caught between them.