Sister Lin Xiche has consciously taken on the responsibility of taking care of her naughty brother Lin Xingche since she was a child.
But by accident, she discovered that her younger brother had secretly filled a diary with her name on it.
The two of them tacitly agreed to hide their thoughts, until he was drunk and pushed her against the wall with red eyes in college: "Sister, stop hiding."
But the tests of misunderstanding, betrayal and separation followed one after another.
Many years later, at the wedding, he tremblingly put on a ring for her: "In this two-way journey, I won the bet of my entire life."
