We Announced the Results on September 29!

You can check the contest results here:

[Results Announcement!!] copainter × Shibuya Zensen Manga & Illustration Contest

Thank you very much for all of your submissions. After a thorough review, we have selected the winning entries listed below. We will contact the winners separately.

View contest overview ｜ View Shibuya_Zensen NFTs

Prizes

🏆 Grand Prize (1 winner)

• Pen display tablet: Wacom Cintiq 16 (Model: DTK-168K4C)
• Reference price: ¥118,000 (tax included)

🥈 Prize Winners (10 winners)

• Amazon Gift Card worth ¥10,000 × 10

Note: Color, included accessories, and warranty terms follow the manufacturer’s specifications. Amazon Gift Cards will be provided as digital codes.

🎁 Participation Prize

• copainter tickets
  • If you do not have a copainter account at the time of distribution, you will not be eligible to receive the participation prize.

Winning Works

Grand Prize (1 winner)

Winner: Mochi / @omocchi_omochi
X: https://x.com/omocchi_omochi/
https://blog.copainter.ai/shibuya_zensen-2/

Create Manga or Illustrations with the Theme “Shibuya_Zensen <Yoiyami>” and Submit Your Work!

Draw manga or illustrations freely based on Shibuya_Zensen <Yoiyami> and submit your entry!

Outstanding works will receive luxurious prizes such as the Wacom pen display tablet “Cintiq 16” (approx. ¥118,000 value) and Amazon Gift Cards worth ¥10,000.

Shibuya_Zensen <Yoiyami> is a project that aims to create a new IP through user participation, starting from NFTs. The original artwork features main characters illustrated by the popular artist popman3580, and based on those characters, 10,000 generative NFT characters were created.

Submission Period

Wednesday, August 20, 2025, 17:00 – Wednesday, September 17, 2025, 23:59 (JST)
The campaign has ended.

Theme

Please create illustrations or manga based on the characters (NFTs) and/or the one-shot manga of Shibuya_Zensen <Yoiyami>.

You may draw any situation you like, including (but not limited to) the themes below.
If a character becomes popular, it might even appear in a future manga!

• Illustrations of characters from NFTs you purchased
• Illustrations of Shibuya_Zensen <Yoiyami>
• Battle scene illustrations
• Everyday 4-panel comics
• A sequel to the one-shot manga

Reference Materials (One-shot Manga / Characters)

One-shot manga
https://x.com/Shibuya_Zensen/status/1956196664710193369

Official X (worldbuilding, etc.)
https://x.com/Shibuya_Zensen

Check character images here
OpenSea
https://opensea.io/ja/collection/shibuya_zensen-yoiyami

Mercari NFT
https://nft.jp.mercari.com/project/83833f0a-6f9d-4b31-9bfb-db9fd2ff8604

About the Prizes

• [Grand Prize] Pen display tablet Cintiq 16 (DTK168K4C) (approx. ¥118,000) × 1 winner
• [Prize Winners] Amazon Gift Cards × 10 winners
• [Participation Prize] 100 copainter tickets × all participants
• [Special Prize] If you win with a manga entry, you may be invited to create a spin-off work.
• [NFT Purchase Bonus] Buy 1 NFT and get 15 copainter tickets (approx. ¥300 value)

How to Enter

1. Create an illustration or manga based on Shibuya_Zensen <Yoiyami>
2. Follow on X: copainter and Shibuya_Zensen
3. Quote repost the campaign post with:
   • the required entry hashtag(s), and
   • a portion of your illustration or manga
4. Register on copainter: https://www.copainter.ai/ja
5. Submit via the entry form below (now closed)

Judging & Prizes

• Entries will be judged by the organizers and relevant operational staff. Their decisions are final and no appeals will be accepted.
• Depending on the number and quality of submissions, the Grand Prize may not be awarded. In such cases, prizes may be redistributed (e.g., increasing the number of Prize Winners).
• Prize contents may be changed to equivalent alternatives due to unavoidable circumstances.
• The NFT purchase bonus tickets are available only to those who can provide proof of purchase/ownership (e.g., owned NFT ID).
• Prizes will be shipped and tickets will be granted within 2–4 weeks after the winners are announced.
• For the “character appearance in manga” benefit, you cannot choose details such as frequency of appearance.

Contest Rules

• This campaign is open to residents of Japan only (prize shipping is also limited to Japan).
• Multiple submissions per person are allowed, but submitting the same or very similar work multiple times is prohibited.
• Submitted works must be unpublished, original works created by the entrant, and the entrant must own the copyright.
• The following entries may be disqualified:
  • Content that violates public order and morals (excessive violence, sexual content, discriminatory expressions, etc.)
  • Content that infringes on others’ rights (tracing existing characters, derivative works/fan art, etc.)
  • AI-generated images themselves
    • Works that use copainter only as an assistive tool are allowed.
• Copyright remains with the entrant. However, the organizers (the Shibuya_Zensen Production Committee and partner organizations) may use and publish all or part of submitted works free of charge for announcements, result publications, promotions, and related purposes.

Additional Notes

• Following copainter and Shibuya_Zensen on X is required.
• Winners will be contacted via X DMs. If you unfollow, you may lose eligibility.
• Prize shipping is available only to those who reply within 7 days of the winner notification.

To prevent impersonation, we may verify that the repost URL and account name match.