After losing their parents at an early age, Shen Zheng gave up university and spent twelve years driving trucks and hauling cargo to support his younger sister, Shen Yan, through her bachelor's, master's, and doctoral degrees. But at her graduation banquet, Shen Yan unexpectedly denies their sibling relationship in public just to save face. Heartbroken, Shen Zheng takes back the motorhome and stops supporting her. However, Shen Yan joins forces with others to forge inheritance documents, incite online harassment, and even steal the ledger left behind by their mother to force him into submission. Facing their relentless pressure, Shen Zheng uses years of carefully preserved financial records and audio recordings to expose their lies one by one and make the wrongdoers face the consequences. When his sister falls on hard times and comes begging for reconciliation, he finally refuses to sacrifice himself again. Leaving behind a family bond that has drained him for years, he starts over and resumes the life he put on hold twelve years ago.