The reason why [ロケットナウ](javascript:void(0)) (Rocket Now) offers its service for free—including zero delivery and service fees—is due to its backing by a strong financial power and a long-term strategic investment approach by its parent company Coupang, a major South Korean e-commerce firm. Located in Japan since January 2025, Rocket Now aims to disrupt the food delivery market by removing typical fees seen in competitors like Uber Eats or Demae-can, and by often selling food at the same price as in stores, avoiding the usual markups. This free pricing model is part of a strategic effort to quickly grow market share, encouraged by Coupang's previous successful experience with its Korean delivery service. The company defrays costs as an initial investment to stimulate demand and uptake in a competitive environment. Promotions such as large discount coupons for first-time users and expansion into major cities beyond just the Kanto region also support customer attraction. In summary, Rocket Now's "free" service is enabled by its parent company's strong financial resources, strategic long-term investment, and the goal to replicate its Korean market success in Japan by making deliveries affordable and attractive without extra fees. This innovative pricing intends to increase convenience and demand, potentially reshaping the competitive food delivery landscape in Japan.

The queried terms in Japanese, with translations highlighted, are:

• [ロケット](javascript:void(0)) (rocket)
• [ナウ](javascript:void(0)) (now)
• [なぜ](javascript:void(0)) (why)
• [無料](javascript:void(0)) (free)