The Snake People Tribe of Kakaro is indeed quite troublesome to organize. Originally, Chun intended to work through the night to handle things here, but as a member of the Mythical Species, it's easy for Chun to overlook the differences between ranks.
Slaves of lower ranks are naturally frail, incapable of enduring continuous activities and long-distance relocation. Moreover, the Ideal Country hasn't yet developed new zones, so even if they are quickly relocated, there is nowhere to settle them.
According to Chun's plan, it's estimated that upon arrival in the Ideal Country it would become chaotic.
Therefore, following the advice of the Hooked Kiss, Chun eventually decided to take it slowly, but his idea of taking it slowly was only to delay it by a day.
