Sell Japanto the world —with us.
We have launched the eBay Co-creation Project, offering personalized one-on-one support to guide you through the entire process, from store application to order fulfillment. Our exclusive AI tools empower you to manage your store with ease, helping you build your Japanese cross-border e-commerce business from the ground up.
Japan's cross-border e-commerce market is sufficiently large.
Understanding the Current State of eBay through Data
Annual purchases by US consumers from Japanese sellers via cross-border e-commerce — roughly 1.6x growth in four years.
* Figures describe market size only; they are not a promise of revenue.
Why Japanese goods?
With global trust in Japanese quality and a rich variety of product categories, Japanese products on eBay inherently possess a 'reason to sell well'.
Trusted Japanese brands with natural repeat demand.
Japanese daily life itself is the differentiator — practical and well designed.
Japan boasts a rich diversity of tools, attracting a large global following.
Steady cross-border demand backed by global fandom.
Handwork whose value travels — the essence of Japan.
Doing eBay alone is harder than it looks.
Most people who start alone stall before their first sale — usually for the same reasons.
Registration and review are full of fine print; one wrong step and suspensions or freezes are not rare.
Working out sourcing and platform rules alone burns time and trial-and-error cost.
English listings, customer care, international shipping — running it all alone isn't realistic.
You can't tell whether your numbers are normal, so it's easy to quit before the first sale.
We are recruiting eBay startup partners.
You don't have to navigate challenges alone; start your Japanese cross-border e-commerce business with a team that's already achieving results.
Who we want to build with.
If you're willing to do it, MUMU will be with you until the very end.
Why do it with MUMU?
Work next to a team that actually sells. We only hand you what we've tested in our own store, broken down into steps you can execute.
Our store is live. We share working judgment, not textbook theory.
Sourcing, listings, translation and data analysis — built from real operating needs.
Someone next to you at the exact points where people give up.
Not “try harder” but “do this today” — the process is broken into doable steps.
Our confidence in co-creation comes from our own operational experience.
AI Tools to Reduce Operational Complexity
By leveraging AI tools to handle tedious and repetitive tasks in e-commerce operations, we dramatically improve store operational efficiency and reduce costs and complexity.
Candidates extracted from market data and scored for sales potential.
Automatically generate English listings from product information.
Track exchange rates and competitor products in real-time, providing reasonable pricing suggestions.
AI drafts first responses to buyer inquiries.
Sales, profit and best-sellers visualized to inform the next move.
What you'll actually do.
Four stages, run together. At every stage it's clear what we bring and what you do.
Setup support, direction alignment, initial configuration
Prepare documents, share your goals and available time
AI sourcing tools, how to read the data, shortlist support
Run candidate research, take part in sourcing decisions
Multilingual listing generation, image and pricing templates
Publish listings, prepare product information
Data reviews, improvement proposals, scaling strategy
Run shipping and customer care, keep the cycle going
Product & supply-chain partners are welcome too
Makers, wholesalers and regional producers looking for overseas channels — we're glad to talk about supply and logistics partnerships.