In the special "One Piece: Open Upon the Great Sea! A Father's Huge, HUGE Dream!", the provided materials offer no concrete or direct details about Nico Robin’s actions, development, or role. The plot centers on Bonnie, Max, Amanda, and the Straw Hat Pirates’ conflict with the Bayan and Zap Pirates. Yuriko Yamaguchi voices Nico Robin, and her broader series background—her position as the Straw Hats’ archaeologist, past as the sole survivor of Ohara, ability to read Poneglyphs, and bounty progression—is included but remains unrelated to this special’s events.