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13 Nov 2026 • Exclusive Interview • Tokyo, Japan

The Underwear Collector: Inside Japan's Used Lingerie Craze

An exclusive Q&A with a prominent collector who spends thousands of pounds on worn ladies' underwear in Tokyo's highly unusual second-hand market.

The Underwear Collector: Inside Japan's Used Lingerie Craze

For most people, the idea of buying someone else's dirty laundry is completely unthinkable. However, in the high-tech, neon-lit streets of Tokyo, a highly secretive second-hand market has grown into a incredibly thriving industry. Collectors and enthusiasts are willing to pay eye-watering sums of money for worn ladies' underwear, turning a quirky subculture into a serious commercial business.

To fully understand this highly controversial phenomenon, we managed to secure an exclusive meeting with Kenji, a 38-year-old software engineer who has spent years building a massive personal collection. We sat down in a quiet café in Akihabara to delve into the reality of this highly unusual trade.

NativeUK: Kenji, thank you for meeting us. This is obviously an incredibly bizarre hobby. How exactly did you first get into collecting these items? It actually started entirely as a joke! About five years ago, a close friend bought me a packaged pair of worn socks from a specialized novelty shop as a birthday prank. But when I looked online, I was absolutely shocked to discover a massive, highly organised online community. I realized that specific items from popular sellers were extremely rare, and their value was rising rapidly. I decided to step up my involvement and see it as a unique investment. NativeUK: Is this actually a lucrative market? Are people really making serious money from this? Absolutely! It is a highly specialized niche, but the profit margins are huge. Rarity is everything. Items that are authenticated by the original sellers can easily fetch hundreds of pounds. Some popular creators have physical vending machines or VIP clubs where they sell exclusive merchandise. It operates just like the high-end sneaker or art market—it's all about supply and demand. NativeUK: With so many transactions happening online, how do you ensure you don't get ripped off by fake listings? You have to be extremely cautious. The community relies heavily on trust, but scammers are always active. Authentic sellers will provide verification photos, specific certificates, or even sign the packaging. If a deal looks too good to be true, you are probably buying a mass-produced item from a factory. I only buy from highly reputable platforms with strict seller guidelines. NativeUK: How do you manage your collection at home? What do your family and friends think about your hobby? Honestly, I prefer to keep it under wraps! My parents have absolutely no idea, and I store everything in locked, climate-controlled boxes in my spare room to preserve the quality. However, my close friends know about it, and they actually think it's a very clever way to make a quick buck when I decide to resell rare pieces.

While the trade in worn lingerie continues to face heavy social criticism, its massive commercial success is completely undeniable. As digital platforms make it easier for buyers and sellers to safely connect, Kenji's unique collection proves that what one person considers junk, another sees as a highly valuable treasure.

Discussion & Analysis

  • What is your reaction to Kenji's unusual investment strategy?
  • Why do you think niche collector markets like this exist and thrive?
  • Would you ever invest in something highly unconventional to make a profit?
  • How does cultural background influence what is considered a 'weird' hobby?
  • What is the most unusual collector's item you have ever heard of?

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