The Happy Seven in Chang'an

In the near future, Sophie tells her son the story of how she met his father: a story that catapults us back to the year 2021 where Sophie and her close-knit group of friends are in the midst of figuring out who they are, what they want out of life, and how to fall in love in the age of dating apps and limitless options.

Cake and Seeiw have been friends for as long as they can remember. Cake is outgoing and has many friends, while Seeiw is shy and barely speaks to people he's not used to being with. Despite their different personalities, they are very close. By being next-door neighbors since they were born, they became an essential aspect of each other's lives. However, as they get older, a lot of things change, and so does the way they see each other.

Do you believe that there exist countless parallel universes that are exactly like the world you live in? Jiang Xiaoyuan finds herself struggling with her identity as she travels across parallel universes that never seem to intersect. In her original world, she is an invincible wealthy daughter, but in another place, she becomes an ordinary working girl who has absolutely nothing. Along the way, she meets the mysterious Qi Lian and together, they search for the truth involving the mystery surrounding her. Stripped of wealth, family background, appearance, and education, Jiang Xiaoyuan sets herself on a journey to find pieces of her "real" identity.