If you want to see the casual development chapter, please jump directly to the extra chapter. If you want to see the semi-invincible chapter, please skip to chapter 30. Chapter 30 before is all foreshadowing, and the following can be said to be the main text.
PS: The first thirty chapters are for writing practice, the later chapters will be much better.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.