Nami realizes the truth of their situation, her face serious: '--IN OTHER WORDS, THIS... IS THE "SEA OF THE SKY"!!'. Chopper asks nervously, 'WE NEED TO GO HIGHER...?'. Zoro wonders, 'HOW...??'. Sanji admits, 'I HAVE NO IDEA.', and Zoro adds, 'I FORGET.'. Robin suggests calmly, '--MAYBE THIS IS ONLY THE MIDDLE PART OF THE "MILLENNIUM CUMULONIMBUS"...'. Nami points out a crucial detail, 'BUT LOOK, THE "LOG POSE" IS STILL POINTING UP!!'. Sanji gets annoyed at Zoro, 'HEY, DID YOU JUST CALL ME AN IDIOT?'. Suddenly, Usopp recovers, strips down to his underwear, and laughs heartily, 'A SEA IS A SEA! HAHAHAHA!!'. Sanji yells at him, 'HEY, HEY, HEY! DON'T FOOL AROUND. WE STILL DON'T KNOW ANYTHING ABOUT THIS SEA!!'. Luffy cheers him on, 'OH! GO, GO!!'. Usopp declares boldly, 'FOR MY FIRST BIG COURSE--!!! CAPTAIN USOPP WILL SWIM--!!!', and dives headfirst off the ship into the clouds.