A Mid-Autumn Festival banquet brought about earth-shaking changes in Zhou Tianci's fate. The death of his mother gave him wounds that were difficult to heal and gave him the determination to take revenge. Fifteen years later, it was still an accident that threw him a "close friend" who lived together. This girl named Lin Duoduo gradually approached Zhou Tianci, who was deeply in the city, with a heart that was ignorant of the world. What came out of the collision was love. But the moment he decided to fall in love with her, she disappeared silently. She also had her own unspeakable secret. Was approaching him an accident or a planned accident? In the end, love took away all the bad things. After leaving his beloved woman by his side, he picked up the sharp knife on the ground and walked towards his biological father and half-brother. No one can be responsible for others, but there is a kind of love that can be sacrificed. Duoduo left again, but this time it became an eternal farewell.