Emperor/King MC

Any manhwas where the MC starts as dirt poor or as a weakling and eventually builds up strength and power, gathers loyal followers etc. and goes on to become the Emperor/King? There should be heavy focus on politics and nobility. Something like-
1) Heavenly demon can't live a normal life
2) Regressor of the fallen family
3) Becoming the monarch
4) Reincarnated as the first prince: Song on the sword
5) Regressed mercenary's machinations
6) Star fostered swordmaster