New friends, new loves and new experiences mix together inside a colorful college dormitory in Korea that's home to students from around the world.

The series follows the story of the long-term guests at Paradise Inn, located in the heart of Seoul. From the first room to the sixth room, all the guests are different in age, gender, and even where they grew up.

Inevitably, everybody gets hurt at some point in their lives. There are different remedies for different types of wounds, and as time elapses, these remedies start to become less effective. This is a story about a man who created a shield for his broken heart. Since the day his heart broke, he has been living inside a shell. One day, he encounters a being unlike any other, and by interacting with her, he slowly learns how to break out of his shell.

A woman seeks to take revenge when her younger sister disappears and she finds out that her sister suffered violence and sexual abuse from school bullies.

A coming-of-age story about the lives of 18-year-old high school students who are valued according to their ranking in school. Despite their frustrations, they find out how to make their own way in this world that seems to be a stagnant cycle of school and home.