For Chen Cheng, the "standing on one's own feet at the age of thirty" refers to the interest rate.

From 3,000, 100,000, 1 million, 10 million, to hundreds of millions...

More and more principal, a steady stream of interest.

The way money makes money and interest makes compound interest makes Chen Cheng sigh:

I can never spend all this money! I can never spend all of it! I can never spend all of it in my lifetime!

Demon Slayer: Lin Mu's Story (Spiritual Qi Revival, System Novel, Early Brainstorming, Later Mysticism, Invincible Among Players of the Same Rank, Single Female Lead, No Harem, Large Worldview)

Poor cultivation talent? No problem! I gain one attribute point per second, making one day of my cultivation equivalent to ten years of yours, making me invincible!

Poor comprehension? No problem! I'll just add 100,000 attribute points to you. No matter what kind of cultivation technique or Dao intent you have, you'll master it in a second!

A hundred years ago, spiritual energy revived, the world underwent tremendous changes, and the strong were respected!

A century later, with the power of the system, Lin Mu quelled the chaos on Earth and ventured into the universe!

When he stood at the pinnacle of the universe, he realized that his rise might have been destined...

Because he discovered that the world was actually fake...

From this point on, he began to escape the vortex of fate...