Qin Shi: There Is Something Wrong with My Sign-In System

[Qin Shi + Tianjiu + multiple female protagonists + system + reasonable plot] Traveling through the Qin Dynasty, he awakened to the sign-in system and was three generations higher than Ying Zheng. Others sign in: magical weapons and peerless skills. I signed in: bellyband, rouge, tri-fold mirror. Yan Lingji, Shao Siming, Zi Nu, Yan Fei... The stronger they are, the better the things I sign will be. Until I checked out a bag of potato seeds. Something is starting to go wrong in Da Qin's granary. The pattern of the times began to change, and war was no longer the only means to unify the world. The strong man's eyes also began to look farther away.