From what Mio-mun told me, Mayu should be in Saffron with Spencer and Mio sometime tomorrow or Wednesday so I'm going along with that.

While Misaki doesn't personally know Mayu and her obsession with Mio, she's dealt with a similar (but minor) case with her friend before her death. She was kind of oblivious of this until recently so she doesn't know exactly what to do, but she'll try to help anyway she can?