Rin Kamura is the daughter of Kamura Group. Her father is the chairman of Kamura Group and a well-known director + screenwriter. Her mother is a famous ballet dancer and actor. She is a child star as famous as Naosumi Kamura and Sanan Kurata. She seems to be the favored daughter of heaven, but actually she has a different identity? As the childhood sweetheart and best friend of Akito Hayama, Rin believed that he had the responsibility to pull Akito out of the abyss. But after that, did the relationship between Rin and Akito seem to be different? Kurata Sanan is Xiao Rin's best friend and childhood friend, and is also a work partner. Together they formed a child star group - Sars (meaning extremely influential and infectious, Sanan's Sa plus Rin's R). When Xiao Rin finds out that her best friend and Naosumi are getting closer, how should Xiao Rin bring them together? Matsui Fuka is a good friend of Xiao Rin from kindergarten, and Takaishi Yuta is a friend of Xiao Rin when she was advertising in Osaka. They originally thought that the two would get together, but they parted ways because of Akito. After Xiao Rin explained to Yuta, Yuta followed Fenghua to Jimbo Middle School. What will happen to the two of them?