Appearing with Luffy on the cover of Weekly Shonen Jump Volume 19 are fellow pirates Gol D. Roger and Kozuki Oden.
Since One Piece’s mid-narrative time skip he’s been 19 years old, which makes him below the legal drinking age of 20 in Japan.
But when fans saw the cover itself, there was one thing that raised eyebrows.
One Piece debuted in Weekly Shonen Jump back in 1997, and it’s spent much of the time since as the most popular manga not just in the anthology, but in all of Japan.