It's the 10th anniversary of Tsuki no Terasu.

Karaoke subs (with Vietnamese translation):
https://youtube.com/watch?v=8tOs-pT75Pk

There was a sequel called, "The next Moonshine," with another girl named Mai, who speaks German in the video. Can anyone recommend it? The first one was about a mtf on hormones, and so far I have not been interested enough to buy the sequel game in Japanese.

Sequel:
https://youtube.com/watch?v=nBffNJHAQ10