Alyssa has a timid and bashful way of speaking, though she has confidence when it comes to caring for others. Her caring nature gives her a bit of an older sister vibe, but there's little power or passion to her voice. She lives restricted by the expectations of an upper-class lady.
Compared to the rest of the upper-class students, Alyssa comes across as sounding relatively normal. She's not posh, just very polite.