Dreambuilders

It centers on Minna, a young girl who misuses her newfound ability to create and control other people's dreams to teach her bothersome stepsister a lesson.
Minna, a young girl, misuses her newfound ability to create and control other people’s dreams to teach her bothersome stepsister a lesson. When her stepsister can no longer wake up, Minna has to enter the dream world to save her.