The 2020 Tokyo Olympics have been postponed due to the novel coronavirus (COVID-19) pandemic. The implications for industries related to the Olympics-tourism, hotels and restaurants, and others-are expected to be affected by reduced demand. Japanese workers in these industries were prepared to offer their hospitality to visitors from around the world. They would be benefited not only by an increase in income but also in offering visitors a taste of Tokyo's great hospitality if the Olympics had been held in 2020. However, postponement of the sporting event is likely to have a significant impact on their happiness level. We independently collected individual-level panel data from March to April 2020. In the survey, the respondents were asked about their happiness levels by choosing from 11 categories: 1 (very unhappy) and 11 (very happy). They were also asked about expected income changes from 2020 to 2021. Based on this, we examined the effect of postponement on happiness level and expected income change. The sample was divided into sub-samples of areas including and excluding Tokyo. We found that the happiness level of workers in the tourism and restaurant sectors declined drastically after the announcement of the postponement. Only two weeks later, their happiness level did not alter from the pre-announcement level. This tendency was strongly observed in Tokyo and the surrounding prefectures, but not in other prefectures. However, workers engaged in the tourism and restaurant sectors did not predict a decrease in their income even after the postponement. Combined, these findings indicate that loss of extending hospitality, rather than reduction in income, temporarily reduces the happiness level of workers.