A girl named Mila returns from a long vacation, and her friends notice that she has gained weight. Mila claims to be happy with her new figure and doesn't want to diet, but her friends are worried about her health and try to convince her to lose weight. They start by trying to get her to exercise and eat healthy, but their methods are often comical and ineffective. Despite their best efforts, Mila continues to indulge in junk food and avoids exercise. However, after a conversation with her friends, Mila agrees to try to lose weight for just one week. Throughout the week, Mila's friends try to motivate her to stick to her diet and exercise plan, but she often finds ways to cheat. In the end, Mila does end up losing weight, but it's revealed that it was because she met a new love interest at her grandmother's house, who motivated her to make lifestyle changes.
Here are the key facts extracted from the text:
1. Mila returns from vacation and surprises her friends with her weight gain.
2. Mila's friends try to help her lose weight by encouraging her to exercise and eat healthy food.
3. Mila is initially resistant to their efforts, but eventually agrees to a week-long challenge to live a healthy lifestyle.
4. Mila's friends measure her body fat percentage and come up with a plan to help her lose weight.
5. Mila participates in various exercises, including running, shuttle runs, and stretching.
6. Mila's friends try to distract her from eating junk food and hide her bag of junk food.
7. Mila discovers that her friends have been hiding her junk food and is initially upset.
8. Mila tries a weight loss chocolate bar that her friend Leona gives her, but it turns out to be high in carbohydrates and sugar.
9. Mila visits her grandmother in the village and meets a guy who becomes her motivation to lose weight.
10. Mila returns home after a month and surprises her friends with her significant weight loss.
11. Mila reveals that she lost weight thanks to her friends' initial efforts and her newfound love interest.
12. Mila forgives her friends for their earlier attempts to control her eating habits and they all make amends.