Okay, im so lost. Ive thought maybe the lil ghost girl was something similar to when they portrait an event where someone loses their memory and start anew and then the past memory its like a soul/ghost, like in Golden Time. But it cant be since the Michi knew Honami recently and not only when shes was younger. One thing is for sure, somehow Michi lost her memories of Honami.
But Ange, creeped me out. Like she has something to do with Honami death. But theres also that weird ghost that appeared at hte studio. Maybe that ghost possessed Age?