SmartBank has raised JPY 4.08bn in the first close of its Series B round, bringing its total funding to JPY 7.08bn.The company offers the expense management service B/43, which combines a prepaid card with a household budget app.They have surpassed 1 million downloads within 3 years and plan to launch an AI assistant service for household finances.The funds will be used for talent acquisition and marketing to develop AI-powered budget improvement services.