MZ-generation sisters Hee-jeong and Eun-jeong use an app to find a personal PT teacher to help them lose weight. Both sisters fall in love with their teacher, Ji-hoon, at first sight. The two sisters compete with each other to seduce Ji-hoon to take over.
![Purpose-of-the-MZ-Sisters-2023a](https://yabaisub.app/wp-content/uploads/2023/09/Purpose-of-the-MZ-Sisters-2023a-60x90.jpg)