The day I received the rich woman's will, I laughed like crazy. She asked me to live with my arch-enemy Gu Qingzhou for three months, and then we could share the inheritance worth one billion equally. The two of us shook hands with a fake smile on our faces: "It's a pleasure to work together." But in the middle of the night, we walked into each other's room by chance, one holding a poisonous needle, and the other with a dagger on his waist. "What a coincidence," he sneered, "are you here to inherit the inheritance in advance?" "To each other," I smiled, "Want to see who can survive who will die first?" For breakfast the next day, we fed each other poisoned omelettes and drugged milk, and it was as sweet as true love on the surface. Until I found a yellowed old photo in his drawer - the twin little boys in the photo, one was me and the other was him.