Japanese Drama Title?!

The series was probably released between 2000-2015 just because the quality is a little lower. It's about an upcoming child actress. I saw this on TikTok, but that was a while ago so I can't recall the name nor look it up in my history. In the scene that I saw, the young girl needs to act as a doll. However, when she is acting as a doll, at first she tries to cushion her fall when she's pushed and gets scolded by her teacher. At the end of her training, she becomes like a real doll, falling like an inanimate object and not afraid of getting hurt. On the other hand, the young girl has competition. It's a slightly older girl, but who has more experience with acting or in the show biz.