I Have a Heavenly Tome Pen, and From the Start I Set the Mountain Ablaze

I, Su Zimo, was only sixteen when a useless brush dragged me to another world. With only a Golden Core cultivation base, I have to tread carefully, act meek, and walk on eggshells. Everyone: “Have you no shame? You burned down an entire mountain as soon as you got here!” Heavenly Book Brush: “That’s enough. It’s one thing to fool other people, but how can you even fool yourself?” [Comedy + wild imagination. The first few chapters may be a little slow, but it gets absolutely exciting later on.]