01
Vision
Design the growth of people, business, and culture.
Profile
About
SHIN / Shimpei Oshima
Solopreneur / Engineer / Creator
With a background in book and web editing and web engineering, I now make Shopify apps and commerce support the core of the business while planning, building, and operating COSMA. I practice product development through small improvements that support the long-term growth of people, businesses, and culture.
02
Mission
Build products that make people and businesses better.
03
Philosophy
Small improvements. Long-term impact.
Activities
Multi-domain practice.
Shopify Apps & Commerce Support
COSMA — A Marketplace for Cosplay
Business Information
- Business Name
- Pepin
- Established
- January 5, 2026
- Address
- 〒150-0021 Ebisu, Shibuya-ku, Tokyo
- Owner
- Shimpei Oshima
Contact
Start by sharing the challenge.
Have a Shopify or EC challenge? Let's talk.