A rupture in the flow of time sends seventeen-year-old Ye Yan five years into the future.
Having just cut her hair short, she is mistaken for a boy, so she goes along with it and disguises herself as a boy to make ends meet.
At her most difficult moment, Ru Anning takes her in.
At the time, Ru Anning is eighteen.
The two "boys" depend on each other through the hardest period of their lives.
They are each other's only family.
One day, Ye Yan disappears.
When they meet again, Ru Anning discovers that his buddy has become a girl.
He doesn't know how this happened.
But he knows he absolutely can't let her go this time.
#LightlySweet
Theme: Hard work brings rewards. Love others, but love yourself even more.