Breach of a promise to marry can lead to an award of damages in Japan. Furthermore, similar to some types of commercial contracts, promises to marry do not have to be written down to be enforceable, as long as there is enough evidence to show the existence of the promise. In many cases for breach of a promise to marry, the promise can be proved through showing that the couple had a traditional engagement ceremony, notified family and friends or purchased rings before the promise was broken.