There is a manga called Hagure Idol Jigokuhen It follows a girl named Haebaru Misora who wanted to be a singer when she moved to Tokyo but she ends becoming a gravure and then Adult Video idol instead. It follows the hardships of that and what it's like having to shift your dreams It's very adult, with topics such as working in gravure, Adult Video (AV), sex, drugs, abuse, sexual abuse, and many things like that