In a small village surrounded by mountains and forests, there lived a young man named Liang

Curious by nature, he dreamed of a lightweight, abundant material that could be easily transported—something that would allow ideas to travel as freely as the wind.

One day, while walking along the river, he noticed how dried leaves fell into the water and were carried downstream.

He returned to the village and began to experiment. He collected tree bark, crushing it with stones until he obtained a pulp. He mixed the pulp with river water and spread it over a fine mesh he wove from bamboo threads. Under the sun, he waited anxiously, watching the water slowly evaporate.