i think ideum and jeiyi met bf their condition become like that. there must have been a bi...

i think ideum and jeiyi met bf their condition become like that. there must have been a big accident happened and by the dream ideum had, that must be a fragment of his memory from the past. and jeiyi is a returner student, there is a chance that they bcame classmates and that he's faking his age. idk, just my theory