At the Beginning, He Traveled Back to Qin Shihuang: Who Said I Was Dead?

When I woke up, I heard someone was crying. I felt numb. Travel through time and become the First Emperor~Who else? A must-have emperor system for time travel ~ I don't deserve it! I am a person who has escaped from low-level taste, because my life has no fun. . . . I only have one word in the early stage, which is weak. The weak defeats the strong. Weakness is not strong enough, so I have to use my IQ~