Love Celeb

At age 16, Kirara Nakazono dreams of becoming an Idol Singer, despite her utter bad luck at getting roles or auditions. She thinks that she'd do whatever it took to fulfill her dreams, but then her life puts such believes to the test.

One day, her manager Hanamaki sends her to a supposedly very promising and hard audition and she decides to go... but much to her shock and horror, it's one set in a hotel where the girls actually offer to have sex with the producers in exchange for roles! Kirara panics and tries to escape, but one of the guys tries to rape her. Then she's rescued by a man who turns out to be Ginzou "Gin" Fujiwara, one of the most famous and influential executives of the whole Japan. He listens to Kirara's plight and promises to take her under his wing, but with one condition: she should give him her virginity.

Kirara leaves the party few afterwards, still a virgin and with a note including Gin's phone number... and yet, few later, she's getting several prospect contracts and quite a bit of fame? What did Gin do, and what does he really want from her?! Then starts the fight for Kirara's heart, parallel to her struggles to become a star.

Again, here we have a Mayu Shinjo manga with all it implies. It also has some cameos from other charas by Shinjo, namely Sakuya from Sensual Phrase and Hakuron of Haou Airen.

Tropes used in Love Celeb include:

All Men Are Perverts: And how. Gin is actually nickname the "Virgin Killer" due to this.
Attempted Rape: Poor Kirara is hit with this at the beginning. And her savior isn't much better.
Bastard Boyfriend: Both Hanamaki and Gin are this, to different degrees. Ironically, Gin's Big Brother Mentor was... Sakuya, another BB.
Casting Couch: Kirara's refusal to agree to one kickstarts the plot.
Genki Girl: Kirara is somewhat more cheery and lively than other Shinjo leads.
Idol Singer: Kirara wants to vecome one.
Ill Girl: Makoto Jinguu's girlfriend, Ruriko.
The Klutz: Kirara
Manipulative Bastard: Hanamaki
Names to Know in Anime: The drama CD has Ryoko Shintani (Kirara), Tomokazu Seki (Gin), Ryotaro Okiayu (Hanamaki)
What Is This Thing You Call Love?: Gin, who simply doesn't understand why he can't let go of his attraction to Kirara.
The White Prince: Gin's family has lots of links to higher-ups. His grandfather is an ex Prime Minister, his dad is a succesful businessman and politician.