Preface
Rather timid, Tia always blushes while making love with Caim. I always feels that she don’t unleash her full potential.
That game is Aiyoku no Eustia. One of the main vocal, NANJŌ Yoshino, starring Eustia.
The Songs
The game maybe less known, but the very popular song among anime lovers, LEVEL5 -judgelight- (lyrics) and only my railgun (lyrics), were also sung by her.
These song are related to the anime “A Certain Scientific Railgun”/“Toaru Kagaku no Railgun”(watch online). (You may think she is the main character, but she isn’t.)
fripSide is listed as these songs’ author; however, a simple search will find that the lead vocal is 南條愛乃/“NANJŌ Yoshino” during 2009-2022, during which the two song are released.
see this doc for more info about the anime and vocals. (Created by Gemini; some songs are not complete, see this for a complete version of songs, again this is AI, but Pro version).
Side note
There is also memory of snow (lyrics), which is also included in the album.
It was less known, but the world and emotions described in it are beautiful.