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From Joy Boy’s true identity to the secret of the One Piece itself — explore the 8 biggest One Piece mysteries that O…
Finished Airing
OVA PG-13 - Teens 13 or older
Happy☆Lesson
HAPPY☆LESSON · 2001
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StatusFinished Airing
SeasonSummer 2001
StudioChaos Project, Studio Kyuuma, Venet
SourceVisual novel
Cast
Characters
10Crew
Staff
23Animation Director3
Art Director1
Assistant Animation Director1
Background Art1
Character Design1
Chief Animation Director1
Editing1
In-Between Animation1
Key Animation4
Original Creator1
Planning1
Producer2
Storyboard1
Theme Song Performance1
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