The big news for Level-5's girls oriented 3DS title Girls RPG at yesterday's Level-5 Vision event was a collaboration with Sailor Moon and Glass Mask. Sailor Moon's Tuxedo Mask and Glass Mask's Masumi Hayami will appear in the game as clients at your hostess club. With these two, the game has a total of 12 collaborative characters, most of whom appeared in the original cell phone version.
Level-5 also announced the formation of Princess K, a girl group consisting of Rina, Yuuki and Hiroko. The three girls will perform the game's opening and ending theme songs. Their likenesses will also appear in the game.
You can hear Princess K's debut song in the below trailer.