One Piece School Volume 5, One Piece Wiki
Big Brother is a Worrier is the fifth volume of One Piece School, including chapters 19 - 23. The cover has a light blue-green background. The logo is red-orange, and the author's name is dark red. The cover display Luffy walking forward, with Ace and Sabo following behind him. School Has Started (学校は始まった, Gakkō wa Hajimatta?) Luffy allows Sanji and Zoro to continue fighting, only stopping Buggy's interference. When they have finished, the three of them along with Nami and Usopp vow to be friend
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