The Fourth Book by Sanjiu Qingfeng

I Am a God, and I Slay Gods

Any Slayer of the Gods Fics? Sanjiu's Was Too Short

Stories About Patriotism, Like Slay the Gods by Sanjiu, or Ones About National Destiny

I have no regrets about being Chinese in this life; in the next, I hope to be born in China. I love China. Long live China!

The Protagonist Returns to Earth With a Powerful Force

Books where the protagonist becomes invincible in another world, then returns to Earth with their own faction.

After Imprisoning the Empress for 100,000 Years, She Became a Mother

This one.

Decisive Killer, One Heroine, No Harem, Super Sweet

The Gods Awaken, and the Protagonist Defends China Against the Myriad Worlds!

The gods awaken, there's a System, and it's set in a modern city. The protagonist returns to Earth and becomes invincible. The "Slay the Gods" series!!