“Drawing is to leave marks on a two-dimension space,” said Richard Serra. To react that statement, I started a series of paintings called Void, I spent weeks to build the surface with aluminum, resin, and white gesso, then I applied black paint on the uneven surface with my hand, which paint becomes the subject matter that runs freely into the concave part without much control. On the controversial side to Richard Serra’s comment, the marks are also created by the influence of the surface, and it challenges the definition of drawing in modern art history.