Vocaloid Club
by Vagebix
From the letters page: Vocaloid Club is a trainer game from Vagebix, built in Ren'Py. It centres on corruption, parody and lesbian, with a female protagonist. The game is ongoing at version 1.5 and available for Windows, Mac, Linux and Android. Download size is about 2.9 GB.
From the box: “Follow the story of Miku Hatsune, a small-town girl who moves to the big city in search of a fresh start.”
Screens
6 screenshots from the game's own gallery.
