Johnston is German-Chinese and is currently studying Business Administration in Frankfurt. He also had the opportunity to study one semester each in California and China. Afterward, he will probably pursue an MSc in Finance. He gained his first professional impressions as an intern in a consultancy for capital market products, an investment boutique, and a fintech startup. During his childhood, he was in the Saarland Table Tennis Association in competitive sports, and afterward he practiced Muay Thai until his studies. Johnston supports the fundraising team.