She is his sister in name only, but she is the only preference in his life.
Jiang Wan was taken into the Lu family when she was six years old, and sixteen-year-old Lu Chen became her "brother." He was silent and restrained, but he held her in the palm of his hand - he saved his breakfast money to buy milk for her, fought for her to block the world's malice, and would lose control even if she came home a minute late.
Everyone thought it was a close relationship between brother and sister.
But when Jiang Wan fell in love with someone else, Lu Chen lost his temper for the first time: "He approached you for a purpose." She didn't believe it until the truth tore apart trust.
It turns out that in those years, his so-called "severe discipline" was because he was afraid that she would get hurt; his so-called "control" was because he was afraid that she would get lost; his so-called "brother status" was a joke of fate - he might not have been her brother, but he was willing to protect her throughout his life.
"Wanwan, I have never been your brother, I just... Love you."