The Chinese word for one is 一 (say it like "ee", written yī). It is the easiest character there is: a single horizontal stroke, drawn left to right. One line for "one."
Strokes are the building blocks
Every Chinese character is made of strokes, like bricks in a wall. 一 is just one brick. Bigger characters stack more strokes together — so learning the strokes first makes everything that comes later much easier.
The memory trick
Writing the same line over and over is boring, and boring things are hard to remember. So Eon used his imagination: that little stroke looks like a wiggly snake! He even used AI to draw a cute blue snake in the shape of the stroke. Now, when he pictures the snake, he remembers 一.
Turning a fact into a picture or story is called a mnemonic — one of the best ways to remember anything, not just Chinese.
Try it
What animal or object does the single stroke 一 look like to you — a snake, a stick, the horizon? Draw your own picture. Making it yours is what makes it stick.