Unbelievable, I Transmigrated into a Great Tang Landlord at Eight!

This is my first time writing. These are just some ideas of mine, and I hope to let everyone experience the customs and character of the prosperous Tang Dynasty. A miserable engineering student transmigrates to the early Tang Dynasty. How will he survive? How will he fight heaven, earth, and other people? Actually, none of that happens. The protagonist just wants to keep his head down, but the harder he tries, the harder it is to stay under the radar.