Seven friends who met in their youth at an English course meet again 25 years later; Lara, Taís, Helena, Adriana, Renée, Natália and Carol, each of them has a different personality and origin, but they share a deep affection.

En ce jour de rentrée scolaire, deux jeunes filles font connaissance sur un quai de gare. Fumi se rend au lycée de Matsuoka, tandis qu’Akira va intégrer le prestigieux établissement de Fujigaya. Elles ne réalisent pas encore qu'elles ont déjà été amies, des années auparavant.

Seo Jae-won, qui a souffert d'une enfance malheureuse, devient une PDG ambitieuse et motivée, en quête constante de succès. Mais lorsque son obsession devient incontrôlable, elle tente d'échapper à ses désirs malsains, mais son mari, un designer et professeur d'université, se retrouve entraîné dans le processus.

Gaynor Jacks, aged 29, returns to her mum and dad's house in Coventry after running off to find her place in the big wide world when she was 17-years-old.

Tong Xi, a ballet dancer, is forced to return from the big city to her hometown due to her mother's job transfer. She wants to hide her tough girl character by transferring to another school, but is seen through by her childhood friend, Lin Nan Yi, who knows her roots and can't get along with her. Tong Xi is acting while Li Nan Yi is trying to blow her cover. From frequent misunderstandings to mutual help, the couples gradually develop a tacit understanding and reliance on each other in their daily life with a group of small-town students. However, Tong Xi learns that Lin Nan Yi is the comic god she has admired for a long time. When the confusion in the process of finding the dreams hits the young and ignorant girl's feelings

Night and Dream were once close friends, but a misunderstanding arose that led to their separation. Right before they graduate and pursue college, the two meet again. Will this meeting get them close again?