This is a story about revenge and repayment mixed with love and hate. The grievances of the previous generation have become the shackles of the next generation, thus ruining the beautiful love, brotherhood, and friendship between colleagues. He said: "I will never let you down in this life!" But in the end, it turned out that we would never see each other again in this life. She said: "You promise me your whole life, and I will accompany you forever." She didn't expect that she wouldn't be able to accompany you even in this life.