In his practice, he often creates realistic copies of originals using pencil drawing. His work deals with the parameters of the value of objects, in the tradition of wabi-sabi, the traditional art of impermanence. His typical process begins with carefully looking at the condition of and around the original object and reproducing it through drawing, paying close attention to signs of the passing of time (e.g. marks, stains or damage). The rubbish challenges the notion of value and how time is spent. Instead of The rubbish being a complete copy, the back has a gap, marking Kentaro's signature style.