Pirates, the Unknown World

Sun Chusan, an ordinary farmer's boy, was admitted to a good university. However, he was supposed to have a bright future, but due to a moment of greed, he went astray, and got deeper and deeper into it, finally unable to extricate himself. Here he saw the last secrets on the earth - man-eating river clams, charming sea monsters, prosperous underwater ancient cities, and ruins in the deep sea... All of this will be shown in front of the readers in the description of each chapter.