In his past life, Su Xiao was wrongly trusted, watching helplessly as the family fortune was seized and his younger sister Su Wanning was taken away. Years later, all he received was the news of her passing. Accidentally reborn back on the day of his parents' funeral, he exposed the scheme in public, brought his sister home, and resolved to make up for all regrets. He worked hard to make money, protected her as she grew up, thinking that as long as he gave her a stable home, he could rewrite the ending. Until an adoption certificate unveiled their background, he found out that what his sister feared the most was not being abandoned once again.