I was recently replaying some old events, and in the Chapter 2 event "What Was", Ami mentioned that she barely remembered playing with a girl at Sensei's old house, back when he used to tutor, but that it couldn't have been Noriko because the hair color was different
So Niki and Ami (probably?) met Maya but don't remember, yet Noriko clearly does remember Maya and we have seen wizard Maya and Noriko in Sensei's sudden flashbacks
But Sensei started only tutoring after the accident, so if Niki met Maya it had to be before the accident, but it couldn't have been years before right? Does Maya hates Niki just because she used to be Sensei's girlfriend? maybe. If it was something deeper then Niki probably would've remembered her
I don't fucking know, the timeline of events are all fucked in my head
EDIT: Wait no Ami went to visit Sensei and played with some girl BEFORE he started tutoring and BEFORE the accident. In Ami's "Heaven for Human Blood" she said that Sensei never tutored anyone at his own house and that she never met Noriko because of that, so she had to have played with Maya before the accident, and Niki also remembers her from before
So for some reason Maya was at Sensei house before he started tutoring and presumedlywhile he was in college? the obvious answer would be "well clearly Sensei groomed her even before the accident" but then why didn't Sensei hide her from Ami and Niki? Why was no one weirded out by a little girl living with a grown man she isn't related too?
Also if Ami used to visit Sensei's old house, did Sensei picked her up? or was she dropped off by Nozomu or Sekai and that means they were aware of Maya's existence? I don't fucking know, I think I might be stupid and forgetting an important piece of the puzzle lol
It's been a bit, but if I recall correctly:
I think Sensei may have lived at his mother's with baby Ami, Nozomu, Saki, and Sekai in the old district, before moving to his Apartment as an adult, which is where he tutored.
Niki and Noriko seemed to live next door to Sensei's mother's house where he grew up, which is probably why they remember Ami.
Noriko claimed she was alone together a lot with Sensei, when she was 6, and it was Niki who told her parents about Sensei tutoring, so it was likely before the accident and around 9 years ago when he was tutoring.
After the accident, which was 8 years ago, when Ami was 7, he moves from his apartment, with Ami, to their current house. Taking the plants and stuff with them.
Sensei's old apartment then became where he'd continue tutoring after the accident, and after Maya showed up soon afterwards according to Noriko, probably where he housed Maya, and did other stuff with Maya.
Almost 5 years ago, Sensei suddenly stopped tutoring. This was probably around the time Maya became a shrine maiden. Also around the time they went to Middle School, and when Ami met Maya, then started bringing her home.
Overall: I don't think the girl Ami had a play date with was Maya, but it's possible if the timeline we've been given is wrong.
I'm kind of hoping that during the Tutoring years, Maya just confronted Niki soon after finding out she and Sensei dated, and Niki doesn't remember much of it, because she was in her depression period after being ghosted.