After Jiang Cheng was diagnosed with ALS, he needed the signature of his sister Jiang Ruxue in order to complete the body donation. The sister and brother who had been feuding due to family changes seven years ago reunited, full of misunderstanding and hatred. Jiang Cheng concealed his illness and silently atone for his sins, while Jiang Ruxue searched for the truth in hatred. After going through the test of life and death, the siblings finally solved the knot they had felt for many years, but Jiang Cheng eventually passed away. With endless regret, Jiang Ruxue buried him next to her mother's grave, looking forward to seeing him again in the next life.