This book is a really sad and emotional story. So, this story goes on with a girl called Yuna who does actor stuff and is really good at it. And she has a friend called Takuya which Yuna liked him for a few years. One day, the actress got told by his manager to go to a house and act like they are their family and don't tell this anyone. Yuna accepts this invite and goes to the house they're going for (Yuna doesn't really want to go there but got forced by her mom). As she spent her day in the house she got kinda used to her grandmother (fake) and mother and a sister and a brother. When Yuna went to her house her name got changed to Kana because the person that invited me here was called Kana. So, when Kana and her family were eating dinner, the brother came back.. which was her friend Takuya. She got really confused but she had to act it out. After days and days, they get more and more used to the environment to live in Kana's house. In the end, there is really shocking stuff happen so I recommend you to read this book if u can read Japanese and please read them and you'll be emotional.