Kazuyoshi is a serial entrepreneur who has over twenty years of experience in fintech. He co-founded Keychain in 2016. Before Keychain, he worked at Kraken as its Japan business development manager. Kazuyoshi has a track record for pioneering and promoting the crypto currency and blockchain ecosystem in Japan. He is a board advisor to the Fintech Association Japan and served as a board member of the Japan Crypto Business Association, of which sixteen registered crypto currency exchanges in Japan are member. He worked at companies such as Softbank, SBI group, and Mizuho Bank and graduated from Keio University.