Ryuta Irisawa has successfully led many overseas clients, mainly from Greater China, into Japan. He has been in charge of the direction of many large-scale promotions and has a wide range of experience from branding to user acquisition, mainly in the digital domain. After joining Septeni in 2013, he was active as a founding member of the Social Media advertising management team. In 2014, he worked as a top consultant, including his experience of establishing an advertising management team for Twitter. After converting to a global sales team in 2017, he worked as a sales representative for many large-scale customers.