Bubble characters are said to be the first lesson for beginners. In fact, it is not easy to write a good bubble character. The style difference of bubble characters lies in the unit shape that constitutes the whole. If you have seen enough graffiti pictures, you will know that it is easy to grasp the overall style as long as you find the small units that make up the whole. For example, each letter is composed of several parts, so you have to look at it from the perspective of disassembly, whether it is a circle, an ellipse or an extension line. It's sausage-shaped. I call my bubble character the condom body. In fact, its small unit is like a condom filled with water. As long as you grasp the small unit, you will master the essentials of bubble character.