Competition · Online · Japan
OAC Student Advertising Creative Award - 15th edition, 2026
公益社団法人日本広告制作協会 (Japan Advertising Creative Organization, OAC)
- Grades 10–12
- No fee
Competition · Hybrid
A free business idea contest for high school students run by Mynavi, in which teams of 2-4 choose one theme set by a sponsoring company and propose a business idea, competing up to a final in Tokyo.
Mynavi Career Koshien describes itself as one of Japan's largest high school business contests. Sponsoring companies set real business themes; teams pick one and submit a proposal, then a presentation video, and company-representative teams are chosen at the semi-final to compete in the final, which is streamed live. The overall winning team receives overseas travel vouchers worth 1 million yen. Pre-registered participants get free access to company theme explanation videos and online courses.