To provide a will display tool which silently conveys one's own will to an accepter of the will without mentioning a word.

The opposite surfaces of a cube are made into the same colors and patterns and the surfaces adjacent thereto are made into different colors and patterns. Promises are previously exchanged between the sender and accepter of the will relating to the meanings of the respective colors and patterns of the cube. The will and state of the sender are conveyed to the accepter by the colors, patterns, etc., to be directed to the accepter of the will, by which the will of the sender is silently conveyed to the accepter without mentioning a word.