Joining Digital Garage in 2013, Yohei was responsible for financial institutions such as banks and credit card companies, focusing on digital marketing support centered on internet advertising. After leaving the company in 2018, he relocated to Israel to study Jewish business culture, negotiation techniques, and the global startup ecosystem. During his time there, he deepened his connections with multiple startups, universities, and venture capital firms under the guidance of local venture capitalists. In 2020, he founded GESHER Inc. and assumed the role of CEO. He has also completed the M&A Executive Program at the Stanford Graduate School of Business.