まさ美

Previously confused with Faylan (whose birthname and past stagename is MASAMI). Not much is known about her, but she is (or was) affiliated with TILDE and a friend/coworker of REIKA.
**Info on erogamescape is wrong!! She is NOT Faylan because Reika mentions on her blog that said MASAMI has a child (https://ameblo.jp/reika-kun/entry-12260467367.html), and there are pictures of her. Faylan also doesn't mention REIKA, Kemopani! or Furufuru Panic on her blog... also, I listened to the song several times and it's clearly not Faylan, even when she sings more cutely.

I couldn't find more info on this Masami, though!