Heartspace stands for everyone's inner world. Everyone has different house which stands for their different personalities. Iris is a positive girl in reality. She is also gentle and soft. Therefore she has a water-like house in heartspace. Rankin has a warm heart and tenacious personality in real life. Therefore he has wood power and wooden house in heartspace. One day Iris got mental shock in real life which led to a catastrophe happened in heartspace. A huge stone crushed the whole heartspace. Which destroyed Iris inner world. This stone stands for Iris mind Trauma. Rankin's used his inner love and power saved Iris and destroyed the huge stone. He saved iris inner world. It is also a growing up for him. He was always shy and hiding. However he finally broke through his inner barrier and found his courage. Rankin saved Iris, however, Iris also saved Rankin in other ways. When Rankin was lonely and isolated, she always proactively approached him. She always provides him the warmest smile. Which brings his courage and happiness. They healed each other and finally had a combined house. Which means finally their hearts connected together.

Lauren, a lonely and awkward freshman, struggles to master adulthood due to his habit of overthinking every situation. After moving into a new apartment, he befriends his four peculiar neighbors who teach him simple but valuable life lessons.

Rong, living in a small town in the south of China, is a pedicure therapist who has never gotten married. She has a brother named Xiaodong , who is 14 years younger. Xiaodong is almost 18 years old, instead of working he plays video games all day long, but after going through a series of things he finally becomes independent. And Seeing this, Rong returned to her hometown in the northeast of China, and went to the police station, confessing that she killed a person 19 years ago. However,the following development of the matter is going to be out of Rong’s expectation.