In the anime world, successful adaptations from manga, light novels, or visual novels often receive warm welcomes from fans. However, this formula doesn’t always guarantee great results. Unfortunately, some anime have become major disappointments, failing to capture the soul of their original works.
10. Record of Ragnarok
Record of Ragnarok premiered on Netflix in 2021, promising epic battles between gods and humans. Instead of thrilling action, viewers got stiff and lifeless animation. While the storyline remained unchanged, the poor visual quality stripped away the manga’s original intensity and grandeur.
9. The Beginning After the End
This popular webtoon and novel was expected to become the next Solo Leveling with its 2025 anime adaptation. However, Studio A-Cat disappointed fans with dull visuals and disjointed pacing. The Beginning After the End became one of the most disappointing anime of the season, frustrating original fans.
8. The God of High School
Fans of the manhwa were thrilled when Studio MAPPA announced The God of High School adaptation. Despite impressive visuals, the anime suffered from pacing issues and cut many key scenes from the original. Since its 2020 finale, no news has surfaced about a second season.
7. Berserk (2016)
After the success of the Golden Age Arc films, fans eagerly awaited the 2016 Berserk series continuation. Unfortunately, the awkward blend of 2D and 3D animation ruined the manga’s artistic beauty. This anime is considered one of the biggest adaptation failures, unable to capture Kentaro Miura’s dark magic.
6. Soul Eater
Soul Eater was a popular anime, but only for its first 30 episodes. In the latter half, Studio Bones diverged from the source material, creating an entirely new ending. This disappointed fans even more, especially since Bones corrected course with a faithful ending for Fullmetal Alchemist: Brotherhood the same year.
5. Deadman Wonderland
With only 12 episodes adapting 13 manga chapters, Deadman Wonderland was heavily criticized for its rushed pacing, cutting important details and losing the depth of characters and psychological horror themes. A gripping manga became dull on screen.
4. Uzumaki
Junji Ito is a master of horror, but his works are notoriously hard to adapt into anime. Uzumaki was hoped to be an exception but disappointed from episode two onward. The animation quality plummeted, making the series look more comical than scary. The fast pacing also compressed the story confusingly.
3. The Promised Neverland
The first season of The Promised Neverland was a huge success, but the second season turned into a disaster. Instead of extending the story over two more seasons to stay faithful, CloverWorks rushed to wrap it up in one, skipping one of the most famous arcs. The result was a confusing mess that deeply disappointed fans.
2. Tokyo Ghoul
The first season of Tokyo Ghoul was well received, but from season two, Studio Pierrot took a completely different direction with an original story. When Tokyo Ghoul:re followed the manga closely, viewers unfamiliar with the original were left confused. Many fans still hope for a full remake of the series.
1. Umineko When They Cry
Umineko When They Cry is considered one of the best visual novels with a complex, mysterious plot. However, Studio Deen’s 26-episode anime was far too short to cover the lengthy story. Many key scenes were cut and the pacing rushed, leaving fans of the visual novel deeply dissatisfied.