LC1728: plug+program / seiya-murai

[seanne]

Original album from Seiya Murai. More info here.

[konpekiHana]

tr2. https://vgmdb.net/album/1593 The vocals and truth sounds like Sana, I can throw a copy of the song or look for sources confirming this.
tr3. https://media.vgm.io/albums/14/9241/9241-1290938493.jpg
tr7. https://vgmdb.net/album/1969
tr5. https://media.vgm.io/albums/21/4212/4212-1272895487.jpg

Based on the booklets, you can make sure that the lyrics really wrote seiya-murai

On account of the information that A.I.Units is 3 people, including ALT, I did not find reliable information, but it sounds that way!

12 track sings ALT that can be understood from the title or by listening to it.

https://ja.wikipedia.org/wiki/新谷さなえ
It is said that Sana actually quail the tracks in this album.