Several official merchandise items feature the characters on specific paper formats:
: These are popular collectible art boards. Sets like the "Throne Ver." feature characters like Eijun Sawamura and Kazuya Miyuki on mini colored paper (approx. Ace of Diamond: Act II
: Upon the release of Volume 29, the Sponichi Newspaper published four different full-page ads in various Japanese regions, which have become rare paper collectibles for fans. 3. Manga "Paper" (Shonen Magazine) Several official merchandise items feature the characters on
: Character-themed sticky notes are available for organization and display. The series was originally serialized on a weekly
: High-quality A4-sized paper prints featuring traditional Japanese ink wash (Sumi-e) style artwork.
The series was originally serialized on a weekly basis in , a pulp-paper manga anthology.
: Small paper/PP material cards (approx. ) that replicate specific panels from the manga. 2. Physical Manga Editions