While most of her appearances were as either one of several playable characters (Love Smash, Oneechanpon) or prominent background scenery (Demolition Girl, Love Aerobi) -- or even as a target of affection (Dream Club, which bumps her age up to 20 so she'll be of legal drinking age (not creepy)) -- D3 eventually saw fit to give her not one but two games elaborating on her "backstory".
This is the first of those two games, which shows her at age 14 (not creepy) and is your bog-standard VN-style gal-game. You play as a talent manager who tries to help her get over her "traumatic past" and become the star she is obviously destined to be. Of special note is the so-called "Jirojiro System" -- literally "Staring System" -- which lets you pause the conversation and scroll up and down on the character portrait for as long as you like (god dammit i said not creepy!!).
Did I mention that the character art is really bland and generic? Even if this sort of thing is your bag, it's not really worth the effort.
Included with the game is a booklet featuring illustrations and bonus manga by Shoshiro Shirayuki and Keiko Kamifuji.