Restrict Co., Ltd., operator of ARKnets, is one of Japan’s leading select shops, with 18 stores spanning Tochigi, Gumma, and Saitama. Handling men’s and women’s fashion, it carries over 500 domestic and international brands—from historic fashion houses to talented new creators—making it one of the largest selections in Japan.

CyberAce is a wholly owned subsidiary of CyberAgent, Inc., and a digital marketing company specializing in internet advertising, creative production, data utilization, and talent development. CyberAce provides high-quality advertising services by leveraging CyberAgent’s assets, online tools, and advanced technologies, including the Kiwami Prediction AI Series.

Solution

Restrict Co., Ltd. faced the challenge of improving the cost-effectiveness of advertising while reducing the manual adjustments required in advertising operations. The primary goal was to maximize return on advertising spend (ROAS) and generate more conversions through online advertising.

rtb.com was adopted as the optimal solution as it allows advertising agencies and advertisers to intuitively control everything from initial setup, such as tag placement and feed configuration, to ad delivery and operation in a seamless and transparent way. The campaigns on rtb.com were quick and simple to set up, allowing Restrict Co., Ltd. to smoothly launch continuously optimized, automatically managed campaigns that maximize ROI. Furthermore, since there is no minimum spend requirement, test campaigns can be run with any budget.

Results

In the first month of running campaigns with rtb.com, Restrict Co., Ltd.’s post-click ROAS increased by 26- fold. The platform is powered by Deep Learning AI, and the more data it analyzes, the sharper it gets. So, during the second month, post-click ROAS ramped up to 34:1 compared to pre-campaign levels. Month three delivered similarly impressive results, with a postclick ROAS of 31:1 and a 7.2% incremental increase in overall sales. Conversions coming by way of rtb.com accounted for 6.7% of all site transactions. Impressed by the campaign’s outstanding performance over the three months and the flexibility of no budget restrictions, Restrict Co., Ltd. plans to further expand its collaboration with rtb.com.

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FAQ

rtb.com is a self-serve retargeting platform built by RTB House that gives ecommerce brands and agencies direct access to Deep Learning-powered technology used by global enterprise advertisers.

rtb.com drives incremental revenue from high-intent users across the open internet.

Retargeting is a digital advertising strategy that displays personalized ads to users who have interacted with your brand online but have left without making a purchase.

It allows you to target relevant audiences rather than using a broader “spray and pray” approach. It makes budget management much more efficient.

The process is enabled by real-time bidding (RTB), whereby ad spaces are bought and sold in instantaneous auctions. The entire process of analyzing user data, placing bids, and displaying the ad happens in mere milliseconds.

  • Deep Learning technology (10+ years in development)
  • Proven with enterprise brands globally
  • Access to 95%+ of internet users via 120+ SSPs
  • No minimum budget required
  • Fully self-serve—no contracts, no insertion orders.

👉 Enterprise-grade performance, built for speed and accessibility.

rtb.com is designed to deliver incremental growth, not just reattribute existing sales.

👉 Typical results:

  • +3-8% uplift in total online revenue
  • Up to 60% of purchases come from products users hadn’t previously seen.

No, you can start with any budget and scale based on results.

👉 You can choose to invest more after seeing the results.

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