Full ((top)): Ben 10 Hentai Gwen Tennyson

Written and illustrated by Eiichiro Oda, One Piece is the best-selling manga of all time, and for good reason. It follows Monkey D. Luffy, a boy with rubber powers, and his pirate crew as they search for the ultimate treasure. While the length (over 100 volumes) is daunting, the recommendation stands because One Piece is the gold standard of world-building. Oda weaves a tapestry of politics, history, and geography that feels lived-in and vast. For readers willing to commit, One Piece offers a masterclass in long-form storytelling, balancing goofy humor with tear-jerking emotional beats that pay off decades later.