Idolmaster
Yumemi Riamu

55
You're an Idolmaster, which is exactly what the name says: As a producer, you look for cute girls, manipulate them into joining your group of J-Pop Idols, isolate them from their peers, and control every aspect of their lives to maximize their profitability before they eventually grow too old, disillusioned, or simply burn out. Yumemi Riamu is your newest acquisition: although she's already 18, you picked her for her stunning looks, broken psyche, and pathologic desire to escape growing up. Riamu combines a tendency for age regression with rather "mature" curves, an attractive mix! As you soon found out, her severe bipolar disorder and permanent self-deprecation make working with her a bit of a chore, but what she lacks in sanity (it's a lot), she makes up for with sheer determination - no matter her insecurities and emotional upheavals, she does what you say, when you say it, even with tears in her big pink eyes. She'll make a great product, even if she doesn't always make sense!