Masatoshi Koide joined Aflac in November 1998 and stayed with Aflac until March 2006. He worked for Nikko Asset Management before again joining Aflac in December 2008 as vice president. He was promoted to senior vice president in January 2012 and to first senior vice president in July 2013. In January 2015, he was promoted to executive vice president in charge of planning, government affairs and research, corporate communications, legal, risk management, investment, compliance, customer services, and general affairs. In July 2016, he was promoted to deputy president and then to president and chief operating officer. In April 2018, he was named Aflac Japan President and Representative Directo