See the original story in Japanese. Tokyo-based startup Exchange Corporation (ExCo for short) announced yesterday that it has launched a new payment solution called Paidy and raised about 330 million yen (or $3.3 million) from Arbor Ventures (Hong Kong), CyberAgent Ventures (Japan), Recruit Strategic Partners (Japan), 500 Startups (USA), and Cherubic Ventures (Taiwan). ExCo has developed various personal finance services including P2P loan market Aqush. Paidy allows you to complete an online payment without entering credit card numbers or login procedure. To buy something online with Paidy, all you need is to enter your name and e-mail address. You can also choose a lump-sum payment or installed payments up to 36 months. When you use Paidy at a retailer to buy something, ExCo pays them first and bills you later. In this way, the company reduces the risk of default in payment for retailers, but the simplicity of payment process makes consumers more easily to buy items online. In this space, we’ve seen similar services by companies like Klarna. This Swedish company mainly serves retailers and consumers in Scandinavian countries, Germany, and Austria, where the simplicity and speed-up of its purchasing process have improved the consumer conversion rate at online…