From what I understand she is from another world and this story is a novel she read. The dad is the regressor(?) obiobi
I pressed send too soon: so later on the body begins to recollect its memories due to the seal breaking when she’s of age, and that’s why she’s so shocked when she begins to see ‘memories that are not her own’
I can't believe I already finished this in one day ヽ(`Д´)ノ
! little confused here, so she's doesn't really got isekai?? Is just a imaginary memory???