Looks like Matsuno Chiya (and even has the same phone) but Kentaurosu doesn't specifically mention it as being her anywhere so I haven't tagged her.

She is. 松野千夜 is her name in Japanese.

Mikaeri said:

She is. 松野千夜 is her name in Japanese.

That was added after I submitted the post/posted the comment.

kuuderes_shadow said:

That was added after I submitted the post/posted the comment.

Ahh, I see then, apologies.