The artist uses a " pin " to mark an area. He is concerned that changes in the scale of daily objects often result in a strengthening or weakening of their functionality, and the enlarged pin seems to 'use the ground as paper', changing the character of the original area by 'marking' it.

The artist uses this enhanced 'marking function' to 'flatten' the ground and facilities in the park. Through a small act, he seeks to provoke the dimensions of the spatial environment and the seemingly stable relationships between objects that are often overlooked in daily life.