Born on June 1986, Shota Nakagawa left the Department of Economics of Nihon University. While in school, he received a high salary through his part-time work in telephone appointments, and opened a second-hand clothes shop at the age of 20 through a friend's referral. Unfortunately, the shop did not prosper and it had to shut down. After which, he was employed in Opt, Inc., an Internet advertising firm. After being transferred to Soldout, Inc. through a corporate venture, he retired to Osaka in 2012. He worked as a pioneer employee in the Osaka office of E-guardian, Inc. and was mainly in charge of social media-related work. As a social risk specialist, he often appear as a guest in various TV media outlets. During this time, he was introduced to crowdsourcing when he was reassigned to the business planning department, which handles new businesses. Seeing the potential in crowdsourcing and in online worker development in the Japanese market, he decided to start his very own business. On September 2014, Caster, Inc. was established.