Diseases, diseases

Kaya, Usopp's old friend in East Blue, gets increasingly ill. But the Mugiwara crew are too far from there to sail back. After finding a faster way to go back, the crew is separated into two groups. Zoro, Robin, and Chopper and Usopp go off to East Blue, hoping to get there to help Kaya. The rest of the crew stays behind, waiting for their return.