[Births in tandem, schooling in tandem, and returning home in tandem.
Even the later confessions were in tandem, but this time the order was changed, with Yi and Qi first.
Apart from his parents, Yi Ji is the closest person to Xu Mang in this world.
If it hadn't been for the second year of high school, Xu Mang wouldn't have known that her feelings for Yi Ji were never family, or it could be that the original feelings were subtly transformed into love by Yi Ji.
To put it in Yi Ji's words, "You have been deceived by me (going home) without you knowing it…"]
Concept: Childhood sweethearts are also very loving