When Lanling was on Earth, he watched a video about the interior of the human body and came to a conclusion.
Big and small are completely relative.
In that video, the inside of every person's body is like an independent universe.
Every cell is a citizen of this cosmic kingdom. Within this independent cosmic kingdom called the body, there are countless enemies, such as various viruses and bacteria.
On the surface and inside the human body, numerous wars break out every moment.
The wars between healthy cells and viruses and bacteria, seen deep inside the body, each appear as spectacular as a Hollywood blockbuster.
For example, when a boil appears on your face, but looked at deeply inside the body, it seems like a terrifying volcanic eruption, or an explosion of a giant missile. The surface of your skin breaks with a small cut, while inside the body, it's like a landslide and earthquake, tens of thousands and hundreds of thousands of cellular citizens instantly perish.
