Cowardly in the Early Tang Dynasty

Even though I have seen heroes one after another, I still can't change my heart. I still have to be cowardly when it's time to be cowardly! When an ordinary college graduate travels back to the founding period of the early Tang Dynasty, can he really live as relaxed and comfortable as written in the novel? Li Zhiyun expressed panic. What use would a computer student have in this war-torn era of the Sui and Tang Dynasties? Although I usually read historical novels from the Tang Dynasty, they are usually from the Zhenguan period! So I remember: The Xuanwumen Incident... What happened during the war in the early Tang Dynasty? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.