Medical teacher Lin Yi was diagnosed with ALS and decided to donate his body for research. Since he needed signatures from his family members, he contacted his sister Lin Zhi who was full of resentment against him after seven years. Lin Zhi signed her name indifferently and refused to communicate more, but fate brought the two together again. Her sister had always misunderstood that Lin Yi had abandoned her and her mother, but she did not know that her brother had difficulties. Later, Lin Zhi began to try to repair the relationship between her siblings, and even agreed to take her brother to worship on her mother's birthday. But Lin Yi couldn't wait until that day and passed away peacefully in his old rental house. Lin Zhi later learned the whole truth and understood his brother's years of forbearance and dedication. His sister, immersed in endless regret, followed them.
