When two stars revolve around the center of a common mass, they become a binary star system, attracting each other, orbiting each other, until they die...
The two sub-stars of the binary star system have the same orbital period, and the same is true for the love of two seventeen-year-old boys for each other.
If my love were an axis, then you would be my origin.
Jiang Fanzhou hugged Yu Xiao and said, "KIC9832227 is a close binary star system. The two stars are extremely close and their surfaces are in contact with each other."
Yu Xiao was furious: "Although... But what is this."
"It's okay, I'll spend my whole life telling you."
Purpose: youthful growth